diff --git a/CHANGELOG.md b/CHANGELOG.md
index 625df55c2f..98e5dddc90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -356,7 +356,7 @@ If that is the case, you should be able to track the old value directly by savin
 * **common:** don't convert null to a string when flushing a mock request ([#21417](https://github.com/angular/angular/issues/21417)) ([8b14488](https://github.com/angular/angular/commit/8b14488)), closes [#20744](https://github.com/angular/angular/issues/20744)
 * **core:** fix [#20582](https://github.com/angular/angular/issues/20582), don't need to wrap zone in location change listener ([#20640](https://github.com/angular/angular/issues/20640)) ([f791e9f](https://github.com/angular/angular/commit/f791e9f))
 * **core:** fix proper propagation of subscriptions in EventEmitter ([#22016](https://github.com/angular/angular/issues/22016)) ([e81606c](https://github.com/angular/angular/commit/e81606c)), closes [#21999](https://github.com/angular/angular/issues/21999)
-* **core:** should check Zone existance when scheduleMicroTask ([#20656](https://github.com/angular/angular/issues/20656)) ([3a86940](https://github.com/angular/angular/commit/3a86940))
+* **core:** should check Zone existence when scheduleMicroTask ([#20656](https://github.com/angular/angular/issues/20656)) ([3a86940](https://github.com/angular/angular/commit/3a86940))
 * **forms:** publish missing types ([#19941](https://github.com/angular/angular/issues/19941)) ([2707012](https://github.com/angular/angular/commit/2707012))
 * **ivy:** generate correct interpolations ([#21946](https://github.com/angular/angular/issues/21946)) ([3cc1d76](https://github.com/angular/angular/commit/3cc1d76))
 * **ivy:** generate lifecycle pattern ([#21865](https://github.com/angular/angular/issues/21865)) ([f816666](https://github.com/angular/angular/commit/f816666))
@@ -387,7 +387,7 @@ If that is the case, you should be able to track the old value directly by savin
 * **common:** don't convert null to a string when flushing a mock request ([#21417](https://github.com/angular/angular/issues/21417)) ([c4fb696](https://github.com/angular/angular/commit/c4fb696)), closes [#20744](https://github.com/angular/angular/issues/20744)
 * **core:** fix [#20582](https://github.com/angular/angular/issues/20582), don't need to wrap zone in location change listener ([#22007](https://github.com/angular/angular/issues/22007)) ([ce51ea9](https://github.com/angular/angular/commit/ce51ea9))
 * **core:** fix proper propagation of subscriptions in EventEmitter ([#22016](https://github.com/angular/angular/issues/22016)) ([c6645e7](https://github.com/angular/angular/commit/c6645e7)), closes [#21999](https://github.com/angular/angular/issues/21999)
-* **core:** should check Zone existance when scheduleMicroTask ([#20656](https://github.com/angular/angular/issues/20656)) ([aa9ba7f](https://github.com/angular/angular/commit/aa9ba7f))
+* **core:** should check Zone existence when scheduleMicroTask ([#20656](https://github.com/angular/angular/issues/20656)) ([aa9ba7f](https://github.com/angular/angular/commit/aa9ba7f))
 
 
 
@@ -1808,7 +1808,7 @@ From 4.0.0 @angular/core uses a [`WeakMap`](https://github.com/angular/angular/c
 * **compiler:** make sourcemaps work in AOT mode ([492153a](https://github.com/angular/angular/commit/492153a))
 * **compiler:** only warn for `[@Injectable](https://github.com/Injectable)` classes with invalid args. ([5c34066](https://github.com/angular/angular/commit/5c34066)), closes [#15003](https://github.com/angular/angular/issues/15003)
 * **compiler:** shouldn't throw when Symbol is used as DI token ([#13701](https://github.com/angular/angular/issues/13701)) ([8b5c6b2](https://github.com/angular/angular/commit/8b5c6b2)), closes [#13314](https://github.com/angular/angular/issues/13314)
-* **compiler:** support interface types in injectable constuctors ([#14894](https://github.com/angular/angular/issues/14894)) ([b00fe20](https://github.com/angular/angular/commit/b00fe20)), closes [#12631](https://github.com/angular/angular/issues/12631)
+* **compiler:** support interface types in injectable constructors ([#14894](https://github.com/angular/angular/issues/14894)) ([b00fe20](https://github.com/angular/angular/commit/b00fe20)), closes [#12631](https://github.com/angular/angular/issues/12631)
 * **compiler:** warning prints "WARNING" instead of "ERROR" ([#15125](https://github.com/angular/angular/issues/15125)) ([3b1956b](https://github.com/angular/angular/commit/3b1956b))
 * **core:** don’t recreate `TemplateRef` when used as a reference. ([#15066](https://github.com/angular/angular/issues/15066)) ([df914ef](https://github.com/angular/angular/commit/df914ef)), closes [#14873](https://github.com/angular/angular/issues/14873)
 * **core:** don’t throw if queries change during change detection. ([06fc42b](https://github.com/angular/angular/commit/06fc42b)), closes [#14925](https://github.com/angular/angular/issues/14925)
@@ -1848,7 +1848,7 @@ From 4.0.0 @angular/core uses a [`WeakMap`](https://github.com/angular/angular/c
 
 ### BREAKING CHANGES
 
-* Perviously, any provider that had an ngOnDestroy lifecycle hook would be created eagerly.
+* Previously, any provider that had an ngOnDestroy lifecycle hook would be created eagerly.
 
   Now, only classes that are annotated with @Component, @Directive, @Pipe, @NgModule are eager. Providers only become eager if they are either directly or transitively injected into one of the above.
 
@@ -2116,7 +2116,7 @@ Note: the 4.0.0-rc.0 release on npm accidentally omitted one bug fix, so we cut
 * **compiler:** improve error message for unknown elements ([#14373](https://github.com/angular/angular/issues/14373)) ([2c6dab9](https://github.com/angular/angular/commit/2c6dab9))
 * **compiler:** improve error messages in aot compiler ([#14333](https://github.com/angular/angular/issues/14333)) ([a696f4a](https://github.com/angular/angular/commit/a696f4a))
 * **compiler:** improve error msg for unknown properties on ([#14373](https://github.com/angular/angular/issues/14373)) ([e5a144d](https://github.com/angular/angular/commit/e5a144d)), closes [#14070](https://github.com/angular/angular/issues/14070)
-* **core:** Remove ChangeDetectorRef Paramter from KeyValueDifferFactory and IterableDifferFactory ([#14311](https://github.com/angular/angular/issues/14311)) ([45cc444](https://github.com/angular/angular/commit/45cc444))
+* **core:** Remove ChangeDetectorRef Parameter from KeyValueDifferFactory and IterableDifferFactory ([#14311](https://github.com/angular/angular/issues/14311)) ([45cc444](https://github.com/angular/angular/commit/45cc444))
 * **core:** suppress a Closure Compiler warning ([#14484](https://github.com/angular/angular/issues/14484)) ([2f2b65b](https://github.com/angular/angular/commit/2f2b65b))
 * **forms:** getRawValue should correctly work with nested FormGroups/Arrays ([#12964](https://github.com/angular/angular/issues/12964)) ([1ece736](https://github.com/angular/angular/commit/1ece736)), closes [#12963](https://github.com/angular/angular/issues/12963)
 * **http:** REVERT: remove dots from jsonp callback name ([#13219](https://github.com/angular/angular/issues/13219)) ([4676df5](https://github.com/angular/angular/commit/4676df5))
@@ -2301,7 +2301,7 @@ returned value being an array.
 ### Bug Fixes
 
 * **common:** add PopStateEvent interface ([#13400](https://github.com/angular/angular/issues/13400)) ([71567d1](https://github.com/angular/angular/commit/71567d1)), closes [#13378](https://github.com/angular/angular/issues/13378)
-* **common:** DatePipe does't throw for NaN ([#14117](https://github.com/angular/angular/issues/14117)) ([32cc675](https://github.com/angular/angular/commit/32cc675)), closes [#14103](https://github.com/angular/angular/issues/14103)
+* **common:** DatePipe doesn't throw for NaN ([#14117](https://github.com/angular/angular/issues/14117)) ([32cc675](https://github.com/angular/angular/commit/32cc675)), closes [#14103](https://github.com/angular/angular/issues/14103)
 * **common:** DatePipe parses input string if it's not a valid date in browser ([#13895](https://github.com/angular/angular/issues/13895)) ([e641636](https://github.com/angular/angular/commit/e641636)), closes [#12334](https://github.com/angular/angular/issues/12334) [#13874](https://github.com/angular/angular/issues/13874)
 * **common:** introduce isObservable method ([#14067](https://github.com/angular/angular/issues/14067)) ([109f0d1](https://github.com/angular/angular/commit/109f0d1)), closes [#8848](https://github.com/angular/angular/issues/8848)
 * **compiler:** allow empty translations for attributes ([#14085](https://github.com/angular/angular/issues/14085)) ([f3d5506](https://github.com/angular/angular/commit/f3d5506)), closes [#13897](https://github.com/angular/angular/issues/13897)
@@ -2719,7 +2719,7 @@ We are adding more tests to our test suite to catch these kinds of problems befo
 * **common:** make sure the plural category exists ([#13169](https://github.com/angular/angular/issues/13169)) ([82c81cd](https://github.com/angular/angular/commit/82c81cd)), closes [#12379](https://github.com/angular/angular/issues/12379)
 * **compiler:** include the summaries of reexported modules / directives / pipes ([#13196](https://github.com/angular/angular/issues/13196)) ([75d1617](https://github.com/angular/angular/commit/75d1617))
 * **compiler:** serialize any `StaticSymbol` correctly, not matter in which context ([5614c4f](https://github.com/angular/angular/commit/5614c4f))
-* **compiler:** short-circut expressions with an index ([#13263](https://github.com/angular/angular/issues/13263)) ([f31c947](https://github.com/angular/angular/commit/f31c947)), closes [#13254](https://github.com/angular/angular/issues/13254)
+* **compiler:** short-circuit expressions with an index ([#13263](https://github.com/angular/angular/issues/13263)) ([f31c947](https://github.com/angular/angular/commit/f31c947)), closes [#13254](https://github.com/angular/angular/issues/13254)
 * **core:** display framework version on bootstrapped component ([#13252](https://github.com/angular/angular/issues/13252)) ([16efb13](https://github.com/angular/angular/commit/16efb13))
 * **facade:** cache original format string ([#12764](https://github.com/angular/angular/issues/12764)) ([a132287](https://github.com/angular/angular/commit/a132287))
 * **http:** set the default Accept header ([#12989](https://github.com/angular/angular/issues/12989)) ([986abbe](https://github.com/angular/angular/commit/986abbe)), closes [#6354](https://github.com/angular/angular/issues/6354)
diff --git a/aio/aio-builds-setup/docs/vm-setup--start-docker-container.md b/aio/aio-builds-setup/docs/vm-setup--start-docker-container.md
index 880624a907..d223e97621 100644
--- a/aio/aio-builds-setup/docs/vm-setup--start-docker-container.md
+++ b/aio/aio-builds-setup/docs/vm-setup--start-docker-container.md
@@ -74,7 +74,7 @@ sudo docker run \
 ## Example
 The following command would start a docker container based on the previously created `foobar-builds`
 docker image, alias it as 'foobar-builds-1' and map predefined directories on the host VM to be used
-by the container for accesing secrets and SSL certificates and keeping the build artifacts and logs.
+by the container for accessing secrets and SSL certificates and keeping the build artifacts and logs.
 
 ```
 sudo docker run \
diff --git a/aio/content/guide/aot-compiler.md b/aio/content/guide/aot-compiler.md
index bb522910f2..1af56be87d 100644
--- a/aio/content/guide/aot-compiler.md
+++ b/aio/content/guide/aot-compiler.md
@@ -188,7 +188,7 @@ This option should be set to `false` when using factory summaries.
 
 ### *fullTemplateTypeCheck*
 
-This option tells the compiler to enable the [binding expression validation](#binding-expresion-validation)
+This option tells the compiler to enable the [binding expression validation](#binding-expression-validation)
 phase of the template compiler which uses TypeScript to validate binding expressions.
 
 This option is `false` by default.
@@ -379,7 +379,7 @@ export function serverFactory() {
 })
 ```
 
-Beginning in version 5, the compiler automatically performs this rewritting while emitting the `.js` file.
+Beginning in version 5, the compiler automatically performs this rewriting while emitting the `.js` file.
 
 {@a function-calls}
 ### Limited function calls
@@ -647,7 +647,7 @@ The following are metadata errors you may encounter, with explanations and sugge
 
 <h3 class="no-toc">Expression form not supported</h3>
 
-The compiler encountered an expression it didn't understand while evalutating Angular metadata.
+The compiler encountered an expression it didn't understand while evaluating Angular metadata.
 
 Language features outside of the compiler's [restricted expression syntax](#expression-syntax)
 can produce this error, as seen in the following example:
@@ -1133,12 +1133,12 @@ This error can occur if you use an expression in the `extends` clause of a class
 Chuck: After reviewing your PR comment I'm still at a loss. See [comment there](https://github.com/angular/angular/pull/17712#discussion_r132025495).
 
 -->
-{@a binding-expresion-validation}
+{@a binding-expression-validation}
 
   ## Phase 3: binding expression validation
 
   In the validation phase, the Angular template compiler uses the TypeScript compiler to validate the
-  binding expressions in templates. Enable this phase explicity by adding the compiler
+  binding expressions in templates. Enable this phase explicitly by adding the compiler
   option `"fullTemplateTypeCheck"` in the `"angularCompilerOptions"` of the project's `tsconfig.json` (see
   [Angular Compiler Options](#compiler-options)).
 
@@ -1168,7 +1168,7 @@ Chuck: After reviewing your PR comment I'm still at a loss. See [comment there](
   generated by the template compiler that holds contents of the `MyComponent` class template.
   Compiler never writes this file to disk. The line and column numbers are relative to the template string
   in the `@Component` annotation of the class, `MyComponent` in this case. If a component uses
-  `templateUrl` instead of `template`, the errors are reported in the HTML file refereneced by the
+  `templateUrl` instead of `template`, the errors are reported in the HTML file referenced by the
   `templateUrl` instead of a synthetic file.
 
   The error location is the beginning of the text node that contains the interpolation expression with
diff --git a/aio/content/guide/hierarchical-dependency-injection.md b/aio/content/guide/hierarchical-dependency-injection.md
index 9cb39383f1..af395f362b 100644
--- a/aio/content/guide/hierarchical-dependency-injection.md
+++ b/aio/content/guide/hierarchical-dependency-injection.md
@@ -220,7 +220,7 @@ Suppose you configured the root injector (marked as A) with _generic_ providers
 You create a car component (A) that displays a car constructed from these three generic services.
 
 Then you create a child component (B) that defines its own, _specialized_ providers for `CarService` and `EngineService`
-that have special capabilites suitable for whatever is going on in component (B).
+that have special capabilities suitable for whatever is going on in component (B).
 
 Component (B) is the parent of another component (C) that defines its own, even _more specialized_ provider for `CarService`.
 
diff --git a/aio/content/guide/observables.md b/aio/content/guide/observables.md
index abc4bd005a..f07e4b2916 100644
--- a/aio/content/guide/observables.md
+++ b/aio/content/guide/observables.md
@@ -56,7 +56,7 @@ Alternatively, the `subscribe()` method can accept callback function definitions
 
 In either case, a `next` handler is required. The `error` and `complete` handlers are optional.
 
-Note that a `next()` function could receive, for instance, message strings, or event objects, numeric values, or stuctures, depending on context. As a general term, we refer to data published by an observable as a *stream*. Any type of value can be represented with an observable, and the values are published as a stream.
+Note that a `next()` function could receive, for instance, message strings, or event objects, numeric values, or structures, depending on context. As a general term, we refer to data published by an observable as a *stream*. Any type of value can be represented with an observable, and the values are published as a stream.
 
 ## Creating observables
 
diff --git a/aio/content/guide/quickstart.md b/aio/content/guide/quickstart.md
index 6ea0489188..a31b419927 100644
--- a/aio/content/guide/quickstart.md
+++ b/aio/content/guide/quickstart.md
@@ -507,7 +507,7 @@ These files go in the root folder next to `src/`.
     </td>
     <td>
 
-      Git configuration to make sure autogenerated files are not commited to source control.
+      Git configuration to make sure autogenerated files are not committed to source control.
 
     </td>
   </tr>
diff --git a/aio/content/guide/service-worker-getting-started.md b/aio/content/guide/service-worker-getting-started.md
index ffe7c2a9f1..fbdae9e341 100644
--- a/aio/content/guide/service-worker-getting-started.md
+++ b/aio/content/guide/service-worker-getting-started.md
@@ -97,7 +97,7 @@ using an example application.
 
 ### Serving with `http-server`
 
-Because `ng serve` does not work with service workers, you must use a seperate HTTP server to test your project locally. You can use any HTTP server. The example below uses the [http-server](https://www.npmjs.com/package/http-server) package from npm. To reduce the possibility of conflicts, test on a dedicated port.
+Because `ng serve` does not work with service workers, you must use a separate HTTP server to test your project locally. You can use any HTTP server. The example below uses the [http-server](https://www.npmjs.com/package/http-server) package from npm. To reduce the possibility of conflicts, test on a dedicated port.
 
 To serve with `http-server`, change to the directory containing your web files and start the web server: 
 
diff --git a/aio/content/guide/testing.md b/aio/content/guide/testing.md
index d47c2d457a..3332130b1c 100644
--- a/aio/content/guide/testing.md
+++ b/aio/content/guide/testing.md
@@ -2365,7 +2365,7 @@ Focus on the `overrideComponent` method.
 <code-example path="testing/src/app/hero/hero-detail.component.spec.ts" region="override-component-method" title="app/hero/hero-detail.component.spec.ts (overrideComponent)" linenums="false"></code-example>
 
 It takes two arguments: the component type to override (`HeroDetailComponent`) and an override metadata object.
-The [overide metadata object](#metadata-override-object) is a generic defined as follows:
+The [override metadata object](#metadata-override-object) is a generic defined as follows:
 
 <code-example format="." language="javascript">
   type MetadataOverride<T> = {
diff --git a/aio/src/app/custom-elements/code/code.component.spec.ts b/aio/src/app/custom-elements/code/code.component.spec.ts
index 68eaa80d00..32ed5a3607 100644
--- a/aio/src/app/custom-elements/code/code.component.spec.ts
+++ b/aio/src/app/custom-elements/code/code.component.spec.ts
@@ -76,7 +76,7 @@ describe('CodeComponent', () => {
       hostComponent.setCode(oneLineCode);
       await untilCodeFormatted();
 
-      // 'pln' spans are a tell-tale for syntax highlighing
+      // 'pln' spans are a tell-tale for syntax highlighting
       const spans = fixture.nativeElement.querySelectorAll('span.pln');
       expect(spans.length).toBeGreaterThan(0, 'formatted spans');
     });
diff --git a/aio/src/assets/js/prettify.js b/aio/src/assets/js/prettify.js
index 3b74b5bdaa..571df147d4 100755
--- a/aio/src/assets/js/prettify.js
+++ b/aio/src/assets/js/prettify.js
@@ -38,7 +38,7 @@ S=/^(DIR|FILE|array|vector|(de|priority_)?queue|(forward_)?list|stack|(const_)?(
 /^<!\w[^>]*(?:>|$)/],["com",/^<\!--[\s\S]*?(?:-\->|$)/],["lang-",/^<\?([\s\S]+?)(?:\?>|$)/],["lang-",/^<%([\s\S]+?)(?:%>|$)/],["pun",/^(?:<[%?]|[%?]>)/],["lang-",/^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],["lang-js",/^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],["lang-css",/^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],["lang-in.tag",/^(<\/?[a-z][^<>]*>)/i]]),"default-markup htm html mxml xhtml xml xsl".split(" "));t(G([["pln",/^[\s]+/,null," \t\r\n"],["atv",/^(?:\"[^\"]*\"?|\'[^\']*\'?)/,null,
 "\"'"]],[["tag",/^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],["atn",/^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],["lang-uq.val",/^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/],["pun",/^[=<>\/]+/],["lang-js",/^on\w+\s*=\s*\"([^\"]+)\"/i],["lang-js",/^on\w+\s*=\s*\'([^\']+)\'/i],["lang-js",/^on\w+\s*=\s*([^\"\'>\s]+)/i],["lang-css",/^style\s*=\s*\"([^\"]+)\"/i],["lang-css",/^style\s*=\s*\'([^\']+)\'/i],["lang-css",/^style\s*=\s*([^\"\'>\s]+)/i]]),["in.tag"]);t(G([],[["atv",/^[\s\S]+/]]),["uq.val"]);t(y({keywords:H,
 hashComments:!0,cStyleComments:!0,types:S}),"c cc cpp cxx cyc m".split(" "));t(y({keywords:"null,true,false"}),["json"]);t(y({keywords:P,hashComments:!0,cStyleComments:!0,verbatimStrings:!0,types:S}),["cs"]);t(y({keywords:O,cStyleComments:!0}),["java"]);t(y({keywords:C,hashComments:!0,multiLineStrings:!0}),["bash","bsh","csh","sh"]);t(y({keywords:Q,hashComments:!0,multiLineStrings:!0,tripleQuotedStrings:!0}),["cv","py","python"]);t(y({keywords:"caller,delete,die,do,dump,elsif,eval,exit,foreach,for,goto,if,import,last,local,my,next,no,our,print,package,redo,require,sub,undef,unless,until,use,wantarray,while,BEGIN,END",
-hashComments:!0,multiLineStrings:!0,regexLiterals:2}),["perl","pl","pm"]);t(y({keywords:R,hashComments:!0,multiLineStrings:!0,regexLiterals:!0}),["rb","ruby"]);t(y({keywords:F,cStyleComments:!0,regexLiterals:!0}),["javascript","js","ts","typescript"]);t(y({keywords:"all,and,by,catch,class,else,extends,false,finally,for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then,throw,true,try,unless,until,when,while,yes",hashComments:3,cStyleComments:!0,multilineStrings:!0,tripleQuotedStrings:!0,
+hashComments:!0,multiLineStrings:!0,regexLiterals:2}),["perl","pl","pm"]);t(y({keywords:R,hashComments:!0,multiLineStrings:!0,regexLiterals:!0}),["rb","ruby"]);t(y({keywords:F,cStyleComments:!0,regexLiterals:!0}),["javascript","js","ts","typescript"]);t(y({keywords:"all,and,by,catch,class,else,extends,false,finally,for,if,in,is,isn't,loop,new,no,not,null,of,off,on,or,return,super,then,throw,true,try,unless,until,when,while,yes",hashComments:3,cStyleComments:!0,multilineStrings:!0,tripleQuotedStrings:!0,
 regexLiterals:!0}),["coffee"]);t(G([],[["str",/^[\s\S]+/]]),["regex"]);var Y=E.PR={createSimpleLexer:G,registerLangHandler:t,sourceDecorator:y,PR_ATTRIB_NAME:"atn",PR_ATTRIB_VALUE:"atv",PR_COMMENT:"com",PR_DECLARATION:"dec",PR_KEYWORD:"kwd",PR_LITERAL:"lit",PR_NOCODE:"nocode",PR_PLAIN:"pln",PR_PUNCTUATION:"pun",PR_SOURCE:"src",PR_STRING:"str",PR_TAG:"tag",PR_TYPE:"typ",prettyPrintOne:E.prettyPrintOne=function(a,d,f){f=f||!1;d=d||null;var b=document.createElement("div");b.innerHTML="<pre>"+a+"</pre>";
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diff --git a/aio/tools/examples/shared/protractor.config.js b/aio/tools/examples/shared/protractor.config.js
index 4e97cc1d6a..11c8d6d5fe 100644
--- a/aio/tools/examples/shared/protractor.config.js
+++ b/aio/tools/examples/shared/protractor.config.js
@@ -3,7 +3,7 @@
 //
 //   Try: `npm run webdriver:update`
 //
-// AND THEN EVERYTIME ...
+// AND THEN EVERY TIME ...
 //   1. Compile with `tsc`
 //   2. Make sure the test server (e.g., http-server: localhost:8080) is running.
 //   3. ./node_modules/.bin/protractor protractor.config.js
diff --git a/aio/tools/transforms/angular-api-package/processors/processClassLikeMembers.spec.js b/aio/tools/transforms/angular-api-package/processors/processClassLikeMembers.spec.js
index 8a7bdc72d2..b61602bc0c 100644
--- a/aio/tools/transforms/angular-api-package/processors/processClassLikeMembers.spec.js
+++ b/aio/tools/transforms/angular-api-package/processors/processClassLikeMembers.spec.js
@@ -10,7 +10,7 @@ const method1 = { parameters: [] };
 const method2 = { parameters: [] };
 const method3 = { parameters: [] };
 
-describe('angular-api-packge: processClassLikeMembers processor', () => {
+describe('angular-api-package: processClassLikeMembers processor', () => {
 
   it('should be available on the injector', () => {
     const dgeni = new Dgeni([testPackage('angular-api-package')]);
diff --git a/aio/tools/transforms/angular-api-package/processors/splitDescription.js b/aio/tools/transforms/angular-api-package/processors/splitDescription.js
index d2f86ac794..2d6de6a9fc 100644
--- a/aio/tools/transforms/angular-api-package/processors/splitDescription.js
+++ b/aio/tools/transforms/angular-api-package/processors/splitDescription.js
@@ -1,5 +1,5 @@
 /**
- * Split the descripton (of selected docs) into:
+ * Split the description (of selected docs) into:
  * * `shortDescription`: the first paragraph
  * * `description`: the rest of the paragraphs
  */
diff --git a/integration/language_service_plugin/package.json b/integration/language_service_plugin/package.json
index 432a5965fe..c6c91f558f 100644
--- a/integration/language_service_plugin/package.json
+++ b/integration/language_service_plugin/package.json
@@ -2,7 +2,7 @@
   "name": "language_service_plugin",
   "version": "0.0.0",
   "license": "MIT",
-  "decription": "Angular Language Service plugin integration test",
+  "description": "Angular Language Service plugin integration test",
   "dependencies": {
     "@angular/animations": "file:../../dist/packages-dist/animations",
     "@angular/common": "file:../../dist/packages-dist/common",
diff --git a/integration/language_service_plugin/tools/load_test.ts b/integration/language_service_plugin/tools/load_test.ts
index 96638d81d2..22090f30f6 100644
--- a/integration/language_service_plugin/tools/load_test.ts
+++ b/integration/language_service_plugin/tools/load_test.ts
@@ -16,7 +16,7 @@ try {
   const lsf = require('@angular/language-service');
   const ls = lsf({typescript: ts});
 
-  // Assert that the only module that should have been required are '@angular/langauge-service', 'fs', and 'path'
+  // Assert that the only module that should have been required are '@angular/language-service', 'fs', and 'path'
 
   const allowedLoads = new Set(["@angular/language-service", "fs", "path"]);
 
diff --git a/modules/playground/e2e_test/upgrade/upgrade_spec.ts b/modules/playground/e2e_test/upgrade/upgrade_spec.ts
index ec7cb2d8c3..eb5a86520d 100644
--- a/modules/playground/e2e_test/upgrade/upgrade_spec.ts
+++ b/modules/playground/e2e_test/upgrade/upgrade_spec.ts
@@ -9,7 +9,7 @@
 import {verifyNoBrowserErrors} from 'e2e_util/e2e_util';
 import {browser, by, element} from 'protractor';
 
-// TODO(i): reenable once we are using a version of protractor containing the
+// TODO(i): re-enable once we are using a version of protractor containing the
 // change in https://github.com/angular/protractor/pull/3403
 xdescribe('ngUpgrade', function() {
   const URL = 'all/playground/src/upgrade/index.html';
diff --git a/modules/playground/src/routing/css/gumby.css b/modules/playground/src/routing/css/gumby.css
index 3e5d6de311..af8373bec0 100644
--- a/modules/playground/src/routing/css/gumby.css
+++ b/modules/playground/src/routing/css/gumby.css
@@ -1290,14 +1290,14 @@ img { -ms-interpolation-mode: bicubic; }
 .navcontain { height: 80px; }
 @media only screen and (max-width: 768px) { .navcontain { height: auto; } }
 
-.pretty.navbar { background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #7b8085), color-stop(100%, #313436)); background-image: -webkit-linear-gradient(#7b8085, #313436); background-image: -moz-linear-gradient(#7b8085, #313436); background-image: -o-linear-gradient(#7b8085, #313436); background-image: linear-gradient(#7b8085, #313436); -webkit-box-shadow: inset 0 1px 1px #7b8085, 0 1px 2px rgba(0, 0, 0, 0.8) !important; -moz-box-shadow: inset 0 1px 1px #7b8085, 0 1px 2px rgba(0, 0, 0, 0.8) !important; box-shadow: inset 0 1px 1px #7b8085, 0 1px 2px rgba(0, 0, 0, 0.8) !important; /* Remove this line if you dont want a dropshadow on your navigation*/ }
+.pretty.navbar { background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #7b8085), color-stop(100%, #313436)); background-image: -webkit-linear-gradient(#7b8085, #313436); background-image: -moz-linear-gradient(#7b8085, #313436); background-image: -o-linear-gradient(#7b8085, #313436); background-image: linear-gradient(#7b8085, #313436); -webkit-box-shadow: inset 0 1px 1px #7b8085, 0 1px 2px rgba(0, 0, 0, 0.8) !important; -moz-box-shadow: inset 0 1px 1px #7b8085, 0 1px 2px rgba(0, 0, 0, 0.8) !important; box-shadow: inset 0 1px 1px #7b8085, 0 1px 2px rgba(0, 0, 0, 0.8) !important; /* Remove this line if you don't want a dropshadow on your navigation*/ }
 @media only screen and (max-width: 767px) { .pretty.navbar a.toggle { border: 1px solid #3e4043; background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #7b8085), color-stop(100%, #4a4d50)); background-image: -webkit-linear-gradient(#7b8085, #4a4d50); background-image: -moz-linear-gradient(#7b8085, #4a4d50); background-image: -o-linear-gradient(#7b8085, #4a4d50); background-image: linear-gradient(#7b8085, #4a4d50); -webkit-box-shadow: inset 0 1px 2px #888d91, inset 0 -1px 1px #565a5d, inset 1px 0 1px #565a5d, inset -1px 0 1px #565a5d, 0 1px 1px #63676a; -moz-box-shadow: inset 0 1px 2px #888d91, inset 0 -1px 1px #565a5d, inset 1px 0 1px #565a5d, inset -1px 0 1px #565a5d, 0 1px 1px #63676a; box-shadow: inset 0 1px 2px #888d91, inset 0 -1px 1px #565a5d, inset 1px 0 1px #565a5d, inset -1px 0 1px #565a5d, 0 1px 1px #63676a; }
   .pretty.navbar a.toggle i { text-shadow: 0 1px 1px #191a1b; }
   .pretty.navbar a.toggle:hover { background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #888d91), color-stop(100%, #565a5d)); background-image: -webkit-linear-gradient(#888d91, #565a5d); background-image: -moz-linear-gradient(#888d91, #565a5d); background-image: -o-linear-gradient(#888d91, #565a5d); background-image: linear-gradient(#888d91, #565a5d); }
   .pretty.navbar a.toggle:active, .pretty.navbar a.toggle.active { background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #3e4043), color-stop(100%, #4a4d50)); background-image: -webkit-linear-gradient(#3e4043, #4a4d50); background-image: -moz-linear-gradient(#3e4043, #4a4d50); background-image: -o-linear-gradient(#3e4043, #4a4d50); background-image: linear-gradient(#3e4043, #4a4d50); -webkit-box-shadow: 0 1px 1px #63676a; -moz-box-shadow: 0 1px 1px #63676a; box-shadow: 0 1px 1px #63676a; } }
 .pretty.navbar.row { -webkit-border-radius: 4px; -moz-border-radius: 4px; -ms-border-radius: 4px; -o-border-radius: 4px; border-radius: 4px; }
 @media only screen and (max-width: 767px) { .pretty.navbar.row { -webkit-border-radius: 0; -moz-border-radius: 0; -ms-border-radius: 0; -o-border-radius: 0; border-radius: 0; } }
-.pretty.navbar ul li.field input.search { background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #191a1b), color-stop(100%, #4f5255)); background-image: -webkit-linear-gradient(#191a1b, #4f5255); background-image: -moz-linear-gradient(#191a1b, #4f5255); background-image: -o-linear-gradient(#191a1b, #4f5255); background-image: linear-gradient(#191a1b, #4f5255); border: none; -webkit-box-shadow: 0 1px 2px #888d91 !important; -moz-box-shadow: 0 1px 2px #888d91 !important; box-shadow: 0 1px 2px #888d91 !important; /* Remove this line if you dont want a dropshadow on your navigation*/ }
+.pretty.navbar ul li.field input.search { background-image: -webkit-gradient(linear, 50% 0%, 50% 100%, color-stop(0%, #191a1b), color-stop(100%, #4f5255)); background-image: -webkit-linear-gradient(#191a1b, #4f5255); background-image: -moz-linear-gradient(#191a1b, #4f5255); background-image: -o-linear-gradient(#191a1b, #4f5255); background-image: linear-gradient(#191a1b, #4f5255); border: none; -webkit-box-shadow: 0 1px 2px #888d91 !important; -moz-box-shadow: 0 1px 2px #888d91 !important; box-shadow: 0 1px 2px #888d91 !important; /* Remove this line if you don't want a dropshadow on your navigation*/ }
 .pretty.navbar > ul > li:first-child, .pretty.navbar .pretty.navbar > ul > li:first-child a:hover { -webkit-box-shadow: none; -moz-box-shadow: none; box-shadow: none; }
 
 .navbar li .dropdown { width: auto; min-width: 0; max-width: 320px; height: 0; position: absolute; background: #fafafa; overflow: hidden; z-index: 999; }
@@ -1618,7 +1618,7 @@ label + .xnarrow:last-child, label + .narrow:last-child, label + .normal:last-ch
 
 .tab-nav > li.active > a { height: 43px; line-height: 41px; background: white; }
 
-.tabs.pill .tab-nav { width: 100%; /* remove if you dont want the tabs to span the full container width */ display: table; overflow: hidden; border: 1px solid #e5e5e5; -webkit-border-radius: 4px; -moz-border-radius: 4px; -ms-border-radius: 4px; -o-border-radius: 4px; border-radius: 4px; }
+.tabs.pill .tab-nav { width: 100%; /* remove if you don't want the tabs to span the full container width */ display: table; overflow: hidden; border: 1px solid #e5e5e5; -webkit-border-radius: 4px; -moz-border-radius: 4px; -ms-border-radius: 4px; -o-border-radius: 4px; border-radius: 4px; }
 .tabs.pill .tab-nav > li { display: table-cell; margin: 0; margin-left: -4px; text-align: center; top: 0; }
 .tabs.pill .tab-nav > li:first-child { margin-left: 0; }
 .tabs.pill .tab-nav > li > a { border: none; border-right: 1px solid #e5e5e5; -webkit-border-radius: 0; -moz-border-radius: 0; -ms-border-radius: 0; -o-border-radius: 0; border-radius: 0; height: 42px; line-height: 40px; }
diff --git a/packages/animations/browser/index.ts b/packages/animations/browser/index.ts
index 05e6b19532..969471c098 100644
--- a/packages/animations/browser/index.ts
+++ b/packages/animations/browser/index.ts
@@ -7,7 +7,7 @@
  */
 
 // This file is not used to build this module. It is only used during editing
-// by the TypeScript language serivce and during build for verifcation. `ngc`
+// by the TypeScript language service and during build for verifcation. `ngc`
 // replaces this file with production index.ts when it rewrites private symbol
 // names.
 
diff --git a/packages/animations/browser/src/render/transition_animation_engine.ts b/packages/animations/browser/src/render/transition_animation_engine.ts
index cb8741b37e..ec69059ef2 100644
--- a/packages/animations/browser/src/render/transition_animation_engine.ts
+++ b/packages/animations/browser/src/render/transition_animation_engine.ts
@@ -403,7 +403,7 @@ export class AnimationTransitionNamespace {
 
       // when this `if statement` does not continue forward it means that
       // a previous animation query has selected the current element and
-      // is animating it. In this situation want to continue fowards and
+      // is animating it. In this situation want to continue forwards and
       // allow the element to be queued up for animation later.
       if (currentPlayers && currentPlayers.length) {
         containsPotentialParentTransition = true;
diff --git a/packages/animations/browser/src/util.ts b/packages/animations/browser/src/util.ts
index f396f417ad..5b5d8a3587 100644
--- a/packages/animations/browser/src/util.ts
+++ b/packages/animations/browser/src/util.ts
@@ -187,7 +187,7 @@ export function interpolateParams(
   const original = value.toString();
   const str = original.replace(PARAM_REGEX, (_, varName) => {
     let localVal = params[varName];
-    // this means that the value was never overidden by the data passed in by the user
+    // this means that the value was never overridden by the data passed in by the user
     if (!params.hasOwnProperty(varName)) {
       errors.push(`Please provide a value for the animation param ${varName}`);
       localVal = '';
diff --git a/packages/animations/browser/test/dsl/animation_spec.ts b/packages/animations/browser/test/dsl/animation_spec.ts
index c73f49fee1..2104968b8f 100644
--- a/packages/animations/browser/test/dsl/animation_spec.ts
+++ b/packages/animations/browser/test/dsl/animation_spec.ts
@@ -381,8 +381,8 @@ function createDiv() {
         });
       });
 
-      describe('subtitutions', () => {
-        it('should allow params to be subtituted even if they are not defaulted in a reusable animation',
+      describe('substitutions', () => {
+        it('should allow params to be substituted even if they are not defaulted in a reusable animation',
            () => {
              const myAnimation = animation([
                style({left: '{{ start }}'}),
diff --git a/packages/animations/browser/test/dsl/animation_trigger_spec.ts b/packages/animations/browser/test/dsl/animation_trigger_spec.ts
index b88f450b72..a702a1ddb9 100644
--- a/packages/animations/browser/test/dsl/animation_trigger_spec.ts
+++ b/packages/animations/browser/test/dsl/animation_trigger_spec.ts
@@ -143,18 +143,22 @@ import {makeTrigger} from '../shared';
           expect(keyframes).toEqual([{height: '100px', offset: 0}, {height: '200px', offset: 1}]);
         });
 
-        it('should subtitute variable params provided directly within the transition match', () => {
-          const result = makeTrigger(
-              'name',
-              [transition(
-                  'a => b', [style({height: '{{ a }}'}), animate(1000, style({height: '{{ b }}'}))],
-                  buildParams({a: '100px', b: '200px'}))]);
+        it('should substitute variable params provided directly within the transition match',
+           () => {
+             const result = makeTrigger(
+                 'name',
+                 [transition(
+                     'a => b',
+                     [style({height: '{{ a }}'}), animate(1000, style({height: '{{ b }}'}))],
+                     buildParams({a: '100px', b: '200px'}))]);
 
-          const trans = buildTransition(result, element, 'a', 'b', {}, buildParams({a: '300px'})) !;
+             const trans =
+                 buildTransition(result, element, 'a', 'b', {}, buildParams({a: '300px'})) !;
 
-          const keyframes = trans.timelines[0].keyframes;
-          expect(keyframes).toEqual([{height: '300px', offset: 0}, {height: '200px', offset: 1}]);
-        });
+             const keyframes = trans.timelines[0].keyframes;
+             expect(keyframes).toEqual(
+                 [{height: '300px', offset: 0}, {height: '200px', offset: 1}]);
+           });
       });
 
       it('should match `true` and `false` given boolean values', () => {
diff --git a/packages/animations/browser/testing/index.ts b/packages/animations/browser/testing/index.ts
index 05e6b19532..969471c098 100644
--- a/packages/animations/browser/testing/index.ts
+++ b/packages/animations/browser/testing/index.ts
@@ -7,7 +7,7 @@
  */
 
 // This file is not used to build this module. It is only used during editing
-// by the TypeScript language serivce and during build for verifcation. `ngc`
+// by the TypeScript language service and during build for verifcation. `ngc`
 // replaces this file with production index.ts when it rewrites private symbol
 // names.
 
diff --git a/packages/animations/src/animation_metadata.ts b/packages/animations/src/animation_metadata.ts
index 55d35a4f27..cd0e463c06 100755
--- a/packages/animations/src/animation_metadata.ts
+++ b/packages/animations/src/animation_metadata.ts
@@ -645,7 +645,7 @@ export function state(
  * destination, keyframes can describe how each style entry is applied and at what point within the
  * animation arc (much like CSS Keyframe Animations do).
  *
- * For each `style()` entry an `offset` value can be set. Doing so allows to specifiy at what
+ * For each `style()` entry an `offset` value can be set. Doing so allows to specify at what
  * percentage of the animate time the styles will be applied.
  *
  * ```typescript
@@ -1052,7 +1052,7 @@ export function useAnimation(
  *
  * ### Usage
  *
- * query() is designed to collect mutiple elements and works internally by using
+ * query() is designed to collect multiple elements and works internally by using
  * `element.querySelectorAll`. An additional options object can be provided which
  * can be used to limit the total amount of items to be collected.
  *
diff --git a/packages/bazel/src/ng_module.bzl b/packages/bazel/src/ng_module.bzl
index bff8757579..2e9cceb910 100644
--- a/packages/bazel/src/ng_module.bzl
+++ b/packages/bazel/src/ng_module.bzl
@@ -198,7 +198,7 @@ def ngc_compile_action(ctx, label, inputs, outputs, messages_out, tsconfig_file,
                arguments = (_EXTRA_NODE_OPTIONS_FLAGS +
                             [tsconfig_file.path] +
                             # The base path is bin_dir because of the way the ngc
-                            # compiler host is configured. So we need to explictily
+                            # compiler host is configured. So we need to explicitly
                             # point to genfiles/ to redirect the output.
                             ["../genfiles/" + messages_out[0].short_path]),
                progress_message = "Extracting Angular 2 messages (ng_xi18n)",
diff --git a/packages/common/src/location/location.ts b/packages/common/src/location/location.ts
index 0d6bab27f7..dfd07858a8 100644
--- a/packages/common/src/location/location.ts
+++ b/packages/common/src/location/location.ts
@@ -172,7 +172,7 @@ export class Location {
 
   /**
    * If url has a trailing slash, remove it, otherwise return url as is. This
-   * method looks for the first occurence of either #, ?, or the end of the
+   * method looks for the first occurrence of either #, ?, or the end of the
    * line as `/` characters after any of these should not be replaced.
    */
   public static stripTrailingSlash(url: string): string {
diff --git a/packages/compiler-cli/src/diagnostics/expression_diagnostics.ts b/packages/compiler-cli/src/diagnostics/expression_diagnostics.ts
index 4bc0721c60..6639332936 100644
--- a/packages/compiler-cli/src/diagnostics/expression_diagnostics.ts
+++ b/packages/compiler-cli/src/diagnostics/expression_diagnostics.ts
@@ -255,7 +255,7 @@ class ExpressionDiagnosticsVisitor extends RecursiveTemplateAstVisitor {
 
     this.push(ast);
 
-    // Find directive that refernces this template
+    // Find directive that references this template
     this.directiveSummary =
         ast.directives.map(d => d.directive).find(d => hasTemplateReference(d.type)) !;
 
diff --git a/packages/compiler-cli/src/diagnostics/symbols.ts b/packages/compiler-cli/src/diagnostics/symbols.ts
index 731b4eb2a3..e900ee40f3 100644
--- a/packages/compiler-cli/src/diagnostics/symbols.ts
+++ b/packages/compiler-cli/src/diagnostics/symbols.ts
@@ -157,7 +157,7 @@ export interface SymbolTable {
  */
 export interface Signature {
   /**
-   * The arguments of the signture. The order of `argumetnts.symbols()` must be in the order
+   * The arguments of the signture. The order of `arguments.symbols()` must be in the order
    * of argument declaration.
    */
   readonly arguments: SymbolTable;
@@ -216,7 +216,7 @@ export enum BuiltinType {
 }
 
 /**
- * The kinds of defintion.
+ * The kinds of definition.
  *
  * @experimental
  */
diff --git a/packages/compiler-cli/src/metadata/bundler.ts b/packages/compiler-cli/src/metadata/bundler.ts
index be8fafd5f8..6a0ef3082c 100644
--- a/packages/compiler-cli/src/metadata/bundler.ts
+++ b/packages/compiler-cli/src/metadata/bundler.ts
@@ -310,7 +310,7 @@ export class MetadataBundler {
     const exportAlls = new Set<string>();
     for (const symbol of exportedSymbols) {
       if (symbol.reexport) {
-        // symbol.declaration is guarenteed to be defined during the phase this method is called.
+        // symbol.declaration is guaranteed to be defined during the phase this method is called.
         const declaration = symbol.declaration !;
         const module = declaration.module;
         if (declaration !.name == '*') {
diff --git a/packages/compiler-cli/src/metadata/evaluator.ts b/packages/compiler-cli/src/metadata/evaluator.ts
index 3dfb6ab6be..ede62060d8 100644
--- a/packages/compiler-cli/src/metadata/evaluator.ts
+++ b/packages/compiler-cli/src/metadata/evaluator.ts
@@ -468,7 +468,7 @@ export class Evaluator {
         if (!isMetadataModuleReferenceExpression(typeReference) &&
             typeReferenceNode.typeArguments && typeReferenceNode.typeArguments.length) {
           const args = typeReferenceNode.typeArguments.map(element => this.evaluateNode(element));
-          // TODO: Remove typecast when upgraded to 2.0 as it will be corretly inferred.
+          // TODO: Remove typecast when upgraded to 2.0 as it will be correctly inferred.
           // Some versions of 1.9 do not infer this correctly.
           (<MetadataImportedSymbolReferenceExpression>typeReference).arguments = args;
         }
diff --git a/packages/compiler-cli/src/metadata/symbols.ts b/packages/compiler-cli/src/metadata/symbols.ts
index 6e29dd267f..1401709390 100644
--- a/packages/compiler-cli/src/metadata/symbols.ts
+++ b/packages/compiler-cli/src/metadata/symbols.ts
@@ -83,7 +83,7 @@ export class Symbols {
           }
           const from = stripQuotes(importDecl.moduleSpecifier.getText());
           if (importDecl.importClause.name) {
-            // An `import <identifier> form <module-specifier>` clause. Record the defualt symbol.
+            // An `import <identifier> form <module-specifier>` clause. Record the default symbol.
             symbols.set(
                 importDecl.importClause.name.text,
                 {__symbolic: 'reference', module: from, default: true});
diff --git a/packages/compiler-cli/src/transformers/api.ts b/packages/compiler-cli/src/transformers/api.ts
index 33d138b1dc..c8ff83ff6f 100644
--- a/packages/compiler-cli/src/transformers/api.ts
+++ b/packages/compiler-cli/src/transformers/api.ts
@@ -73,7 +73,7 @@ export interface CompilerOptions extends ts.CompilerOptions {
   // Whether to generate a flat module index of the given name and the corresponding
   // flat module metadata. This option is intended to be used when creating flat
   // modules similar to how `@angular/core` and `@angular/common` are packaged.
-  // When this option is used the `package.json` for the library should refered to the
+  // When this option is used the `package.json` for the library should referred to the
   // generated flat module index instead of the library index file. When using this
   // option only one .metadata.json file is produced that contains all the metadata
   // necessary for symbols exported from the library index.
@@ -223,7 +223,7 @@ export interface CompilerHost extends ts.CompilerHost {
   /**
    * Load a referenced resource either statically or asynchronously. If the host returns a
    * `Promise<string>` it is assumed the user of the corresponding `Program` will call
-   * `loadNgStructureAsync()`. Returing  `Promise<string>` outside `loadNgStructureAsync()` will
+   * `loadNgStructureAsync()`. Returning  `Promise<string>` outside `loadNgStructureAsync()` will
    * cause a diagnostics diagnostic error or an exception to be thrown.
    */
   readResource?(fileName: string): Promise<string>|string;
@@ -323,7 +323,7 @@ export interface Program {
   getNgStructuralDiagnostics(cancellationToken?: ts.CancellationToken): ReadonlyArray<Diagnostic>;
 
   /**
-   * Retrieve the semantic diagnostics from TypeScript. This is equivilent to calling
+   * Retrieve the semantic diagnostics from TypeScript. This is equivalent to calling
    * `getTsProgram().getSemanticDiagnostics()` directly and is included for completeness.
    */
   getTsSemanticDiagnostics(sourceFile?: ts.SourceFile, cancellationToken?: ts.CancellationToken):
diff --git a/packages/compiler-cli/test/diagnostics/check_types_spec.ts b/packages/compiler-cli/test/diagnostics/check_types_spec.ts
index 5305a431ef..57778f5880 100644
--- a/packages/compiler-cli/test/diagnostics/check_types_spec.ts
+++ b/packages/compiler-cli/test/diagnostics/check_types_spec.ts
@@ -757,7 +757,7 @@ describe('ng type checker', () => {
     it('should reject an access to a nullable field of a method result', () => {
       r('<div>{{getMaybePerson().name}}</div>', `Object is possibly 'undefined'.`, '0:5');
     });
-    it('should accept a nullable assert of a nullable field refernces of a method result',
+    it('should accept a nullable assert of a nullable field references of a method result',
        () => { a('{{getMaybePerson()!.name}}'); });
     it('should accept a safe property access of a nullable field reference of a method result',
        () => { a('{{getMaybePerson()?.name}}'); });
diff --git a/packages/compiler-cli/test/diagnostics/expression_diagnostics_spec.ts b/packages/compiler-cli/test/diagnostics/expression_diagnostics_spec.ts
index bffd7f3db8..72bf7140e8 100644
--- a/packages/compiler-cli/test/diagnostics/expression_diagnostics_spec.ts
+++ b/packages/compiler-cli/test/diagnostics/expression_diagnostics_spec.ts
@@ -51,7 +51,7 @@ describe('expression diagnostics', () => {
     function expectNoDiagnostics(diagnostics: ts.Diagnostic[]) {
       if (diagnostics && diagnostics.length) {
         const message =
-            'messags: ' + diagnostics.map(d => messageToString(d.messageText)).join('\n');
+            'messages: ' + diagnostics.map(d => messageToString(d.messageText)).join('\n');
         expect(message).toEqual('');
       }
     }
@@ -175,7 +175,7 @@ describe('expression diagnostics', () => {
   it('should reject an uncalled event handler',
      () => reject(
          '<div (click)="click">{{person.name.first}}</div>', 'Unexpected callable expression'));
-  describe('with comparisions between nullable and non-nullable', () => {
+  describe('with comparisons between nullable and non-nullable', () => {
     it('should accept ==', () => accept(`<div>{{e == 1 ? 'a' : 'b'}}</div>`));
     it('should accept ===', () => accept(`<div>{{e === 1 ? 'a' : 'b'}}</div>`));
     it('should accept !=', () => accept(`<div>{{e != 1 ? 'a' : 'b'}}</div>`));
diff --git a/packages/compiler-cli/test/transformers/compiler_host_spec.ts b/packages/compiler-cli/test/transformers/compiler_host_spec.ts
index 98b5285005..59118f3449 100644
--- a/packages/compiler-cli/test/transformers/compiler_host_spec.ts
+++ b/packages/compiler-cli/test/transformers/compiler_host_spec.ts
@@ -141,7 +141,7 @@ describe('NgCompilerHost', () => {
           .toBe('/tmp/src/a/child.d.ts');
     });
 
-    it('should allow to skip the containg file for package imports', () => {
+    it('should allow to skip the containing file for package imports', () => {
       const host =
           createHost({files: {'tmp': {'node_modules': {'@core': {'index.d.ts': dummyModule}}}}});
       expect(host.moduleNameToFileName('@core/index')).toBe('/tmp/node_modules/@core/index.d.ts');
diff --git a/packages/compiler/src/aot/static_symbol_resolver.ts b/packages/compiler/src/aot/static_symbol_resolver.ts
index 641a96e4c2..9e2c1a1641 100644
--- a/packages/compiler/src/aot/static_symbol_resolver.ts
+++ b/packages/compiler/src/aot/static_symbol_resolver.ts
@@ -249,7 +249,7 @@ export class StaticSymbolResolver {
   }
 
   /**
-   * hasDecorators checks a file's metadata for the presense of decorators without evalutating the
+   * hasDecorators checks a file's metadata for the presence of decorators without evaluating the
    * metadata.
    *
    * @param filePath the absolute path to examine for decorators.
diff --git a/packages/compiler/src/ast_path.ts b/packages/compiler/src/ast_path.ts
index b899bac985..cb019a47eb 100644
--- a/packages/compiler/src/ast_path.ts
+++ b/packages/compiler/src/ast_path.ts
@@ -11,7 +11,7 @@
  * particular offset in a source file. The head of the list is the top
  * most node. The tail is the node that contains the offset directly.
  *
- * For example, the expresion `a + b + c` might have an ast that looks
+ * For example, the expression `a + b + c` might have an ast that looks
  * like:
  *     +
  *    / \
diff --git a/packages/compiler/src/directive_normalizer.ts b/packages/compiler/src/directive_normalizer.ts
index e61eb10378..06613f361f 100644
--- a/packages/compiler/src/directive_normalizer.ts
+++ b/packages/compiler/src/directive_normalizer.ts
@@ -162,11 +162,11 @@ export class DirectiveNormalizer {
       stylesheets: Map<string, CompileStylesheetMetadata>): CompileTemplateMetadata {
     // Algorithm:
     // - produce exactly 1 entry per original styleUrl in
-    // CompileTemplateMetadata.externalStylesheets whith all styles inlined
+    // CompileTemplateMetadata.externalStylesheets with all styles inlined
     // - inline all styles that are referenced by the template into CompileTemplateMetadata.styles.
     // Reason: be able to determine how many stylesheets there are even without loading
     // the template nor the stylesheets, so we can create a stub for TypeScript always synchronously
-    // (as resouce loading may be async)
+    // (as resource loading may be async)
 
     const styles = [...preparsedTemplate.styles];
     this._inlineStyles(preparsedTemplate.inlineStyleUrls, stylesheets, styles);
diff --git a/packages/compiler/src/expression_parser/parser.ts b/packages/compiler/src/expression_parser/parser.ts
index 55d6b40514..8fd9349898 100644
--- a/packages/compiler/src/expression_parser/parser.ts
+++ b/packages/compiler/src/expression_parser/parser.ts
@@ -670,7 +670,7 @@ export class _ParseAST {
   }
 
   /**
-   * An identifier, a keyword, a string with an optional `-` inbetween.
+   * An identifier, a keyword, a string with an optional `-` between.
    */
   expectTemplateBindingKey(): string {
     let result = '';
diff --git a/packages/compiler/test/aot/compiler_spec.ts b/packages/compiler/test/aot/compiler_spec.ts
index e6ba20fae6..6de379786a 100644
--- a/packages/compiler/test/aot/compiler_spec.ts
+++ b/packages/compiler/test/aot/compiler_spec.ts
@@ -208,7 +208,7 @@ describe('compiler (unbundled Angular)', () => {
 
     });
 
-    it('should error if not all arguments of an @Injectable class can be resolved if strictInjectionParamters is true',
+    it('should error if not all arguments of an @Injectable class can be resolved if strictInjectionParameters is true',
        () => {
          const FILES: MockDirectory = {
            app: {
diff --git a/packages/compiler/test/aot/jit_summaries_spec.ts b/packages/compiler/test/aot/jit_summaries_spec.ts
index dd63c3c411..699a484d3d 100644
--- a/packages/compiler/test/aot/jit_summaries_spec.ts
+++ b/packages/compiler/test/aot/jit_summaries_spec.ts
@@ -255,7 +255,7 @@ describe('aot summaries for jit', () => {
   });
 
   it('should create and use reexports for imported NgModules ' +
-         'accross compilation units',
+         'across compilation units',
      () => {
        const lib1In = {
          'lib1': {
diff --git a/packages/compiler/test/aot/static_reflector_spec.ts b/packages/compiler/test/aot/static_reflector_spec.ts
index eb6f636400..a2eb196142 100644
--- a/packages/compiler/test/aot/static_reflector_spec.ts
+++ b/packages/compiler/test/aot/static_reflector_spec.ts
@@ -1024,7 +1024,7 @@ describe('StaticReflector', () => {
   });
 
   // Regression #18170
-  it('should agressively evaluate array indexes', () => {
+  it('should aggressively evaluate array indexes', () => {
     const data = Object.create(DEFAULT_TEST_DATA);
     const file = '/tmp/src/my_component.ts';
     data[file] = `
@@ -1148,7 +1148,7 @@ describe('StaticReflector', () => {
   Function calls are not supported in decorators but 'functionToCall' was called.`);
       });
 
-      it('should report a formatted error for a refernce to a function call', () => {
+      it('should report a formatted error for a reference to a function call', () => {
         expect(() => {
           return reflector.annotations(
               reflector.getStaticSymbol(fileName, 'ReferenceCalledFunction'));
@@ -1171,7 +1171,7 @@ describe('StaticReflector', () => {
       'CALL_FUNCTION' calls 'functionToCall' at /tmp/src/invalid/function-call.ts(3,38).`);
       });
 
-      it('should report a formatted error for a double-indirect refernce to a function call', () => {
+      it('should report a formatted error for a double-indirect reference to a function call', () => {
         expect(() => {
           return reflector.annotations(
               reflector.getStaticSymbol(fileName, 'TwoLevelsIndirectReferenceCalledFunction'));
@@ -1551,7 +1551,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
           @CustomDecorator() get foo(): string { return ''; }
         }
       `,
-  '/tmp/src/invalid-calll-definitions.ts': `
+  '/tmp/src/invalid-call-definitions.ts': `
         export function someFunction(a: any) {
           if (Array.isArray(a)) {
             return a;
@@ -1560,7 +1560,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
         }
       `,
   '/tmp/src/invalid-calls.ts': `
-        import {someFunction} from './nvalid-calll-definitions.ts';
+        import {someFunction} from './nvalid-call-definitions.ts';
         import {Component} from '@angular/core';
         import {NgIf} from '@angular/common';
 
diff --git a/packages/compiler/test/template_parser/template_parser_spec.ts b/packages/compiler/test/template_parser/template_parser_spec.ts
index 052f256bec..527db692ef 100644
--- a/packages/compiler/test/template_parser/template_parser_spec.ts
+++ b/packages/compiler/test/template_parser/template_parser_spec.ts
@@ -1433,7 +1433,7 @@ Binding to attribute 'onEvent' is disallowed for security reasons ("<my-componen
           ]);
         });
 
-        it('should report references with values that dont match a directive as errors', () => {
+        it('should report references with values that don\'t match a directive as errors', () => {
           expect(() => parse('<div #a="dirA"></div>', [])).toThrowError(`Template parse errors:
 There is no directive with "exportAs" set to "dirA" ("<div [ERROR ->]#a="dirA"></div>"): TestComp@0:5`);
         });
@@ -1455,7 +1455,7 @@ Reference "#a" is defined several times ("<div #a></div><div [ERROR ->]#a></div>
 
         });
 
-        it('should report duplicate reference names when using mutliple exportAs names', () => {
+        it('should report duplicate reference names when using multiple exportAs names', () => {
           const pizzaDirective =
               compileDirectiveMetadataCreate({
                 selector: '[dessert-pizza]',
diff --git a/packages/core/src/metadata/directives.ts b/packages/core/src/metadata/directives.ts
index d503ad72be..a534897e0e 100644
--- a/packages/core/src/metadata/directives.ts
+++ b/packages/core/src/metadata/directives.ts
@@ -797,7 +797,7 @@ export interface Pipe {
    *
    * Normally pipe's `transform` method is only invoked when the inputs to pipe`s
    * `transform` method change. If the pipe has internal state (it's result are
-   * dependant on state other than its arguments) than set `pure` to `false` so
+   * dependent on state other than its arguments) than set `pure` to `false` so
    * that the pipe is invoked on each change-detection even if the arguments to the
    * pipe do not change.
    */
diff --git a/packages/core/src/render3/interfaces/renderer.ts b/packages/core/src/render3/interfaces/renderer.ts
index b9bd50cf8c..54983d0a3b 100644
--- a/packages/core/src/render3/interfaces/renderer.ts
+++ b/packages/core/src/render3/interfaces/renderer.ts
@@ -41,7 +41,7 @@ export interface ObjectOrientedRenderer3 {
   querySelector(selectors: string): RElement|null;
 }
 
-/** Returns wether the `renderer` is a `ProceduralRenderer3` */
+/** Returns whether the `renderer` is a `ProceduralRenderer3` */
 export function isProceduralRenderer(renderer: ProceduralRenderer3 | ObjectOrientedRenderer3):
     renderer is ProceduralRenderer3 {
   return !!((renderer as any).listen);
diff --git a/packages/core/src/util/decorators.ts b/packages/core/src/util/decorators.ts
index d5de421942..3c3e0c0b17 100644
--- a/packages/core/src/util/decorators.ts
+++ b/packages/core/src/util/decorators.ts
@@ -35,7 +35,7 @@ export interface TypeDecorator {
 }
 
 export const ANNOTATIONS = '__annotations__';
-export const PARAMETERS = '__paramaters__';
+export const PARAMETERS = '__parameters__';
 export const PROP_METADATA = '__prop__metadata__';
 
 /**
diff --git a/packages/core/src/view/provider.ts b/packages/core/src/view/provider.ts
index b8a9b7df53..1b793c9234 100644
--- a/packages/core/src/view/provider.ts
+++ b/packages/core/src/view/provider.ts
@@ -462,7 +462,7 @@ function updateProp(
 // expected nodeIndex which a ngOnInit should be called. When sending
 // ngAfterContentInit and ngAfterViewInit it is the expected count of
 // ngAfterContentInit or ngAfterViewInit methods that have been called. This
-// ensure that dispite being called recursively or after picking up after an
+// ensure that despite being called recursively or after picking up after an
 // exception, the ngAfterContentInit or ngAfterViewInit will be called on the
 // correct nodes. Consider for example, the following (where E is an element
 // and D is a directive)
diff --git a/packages/core/src/view/view_attach.ts b/packages/core/src/view/view_attach.ts
index 31726e3139..918ab5dd4b 100644
--- a/packages/core/src/view/view_attach.ts
+++ b/packages/core/src/view/view_attach.ts
@@ -36,7 +36,7 @@ function attachProjectedView(vcElementData: ElementData, view: ViewData) {
   // - add a view to template._projectedViews only 1x throughout its lifetime,
   //   and remove it not until the view is destroyed.
   //   (hard, as when a parent view is attached/detached we would need to attach/detach all
-  //    nested projected views as well, even accross component boundaries).
+  //    nested projected views as well, even across component boundaries).
   // - don't track the insertion order of views in the projected views array
   //   (hard, as when the views of the same template are inserted different view containers)
   view.state |= ViewState.IsProjectedView;
diff --git a/packages/core/test/linker/change_detection_integration_spec.ts b/packages/core/test/linker/change_detection_integration_spec.ts
index 138438d065..01095e0541 100644
--- a/packages/core/test/linker/change_detection_integration_spec.ts
+++ b/packages/core/test/linker/change_detection_integration_spec.ts
@@ -1923,7 +1923,7 @@ class TestLocals {
   }
 }
 
-@Component({selector: 'root', template: 'emtpy'})
+@Component({selector: 'root', template: 'empty'})
 class Person {
   age: number;
   name: string;
diff --git a/packages/core/test/linker/entry_components_integration_spec.ts b/packages/core/test/linker/entry_components_integration_spec.ts
index a3caac6001..dc553c5f3b 100644
--- a/packages/core/test/linker/entry_components_integration_spec.ts
+++ b/packages/core/test/linker/entry_components_integration_spec.ts
@@ -55,7 +55,7 @@ function declareTests({useJit}: {useJit: boolean}) {
       expect(cfr.resolveComponentFactory(NestedChildComp) !.componentType).toBe(NestedChildComp);
     });
 
-    it('should be able to get a component form a parent component (view hiearchy)', () => {
+    it('should be able to get a component form a parent component (view hierarchy)', () => {
       TestBed.overrideComponent(MainComp, {set: {template: '<child></child>'}});
 
       const compFixture = TestBed.createComponent(MainComp);
diff --git a/packages/core/test/linker/regression_integration_spec.ts b/packages/core/test/linker/regression_integration_spec.ts
index 2986d04a70..a4b37cdfaa 100644
--- a/packages/core/test/linker/regression_integration_spec.ts
+++ b/packages/core/test/linker/regression_integration_spec.ts
@@ -121,7 +121,7 @@ function declareTests({useJit}: {useJit: boolean}) {
         expect(MyCountingComp.calls).toBe(1);
       });
 
-      it('should evalute a conditional in a statement binding', () => {
+      it('should evaluate a conditional in a statement binding', () => {
         @Component({selector: 'some-comp', template: '<p (click)="nullValue?.click()"></p>'})
         class SomeComponent {
           nullValue: SomeReferencedClass;
diff --git a/packages/language-service/src/types.ts b/packages/language-service/src/types.ts
index 2666d3bfa3..d6b46316db 100644
--- a/packages/language-service/src/types.ts
+++ b/packages/language-service/src/types.ts
@@ -163,7 +163,7 @@ export type Declarations = Declaration[];
  * Adding a required member or changing a method's parameters, is considered a breaking change and
  * will only be done when breaking changes are allowed. When possible, a new optional member will
  * be added and the old member will be deprecated. The new member will then be made required in
- * and the old member will be removed only when breaking chnages are allowed.
+ * and the old member will be removed only when breaking changes are allowed.
  *
  * While an interface is marked as experimental breaking-changes will be allowed between minor
  * releases. After an interface is marked as stable breaking-changes will only be allowed between
@@ -261,7 +261,7 @@ export enum DiagnosticKind {
  * DiagnosticMessageChain. The messages are intended to be formatted as separate
  * sentence fragments and indented.
  *
- * For compatiblity previous implementation, the values are expected to override
+ * For compatibility previous implementation, the values are expected to override
  * toString() to return a formatted message.
  *
  * @experimental
@@ -308,7 +308,7 @@ export interface Diagnostic {
 export type Diagnostics = Diagnostic[];
 
 /**
- * A section of hover text. If the text is code then langauge should be provided.
+ * A section of hover text. If the text is code then language should be provided.
  * Otherwise the text is assumed to be Markdown text that will be sanitized.
  */
 export interface HoverTextSection {
@@ -318,7 +318,7 @@ export interface HoverTextSection {
   readonly text: string;
 
   /**
-   * The langauge of the source if `text` is a souce code fragment.
+   * The language of the source if `text` is a source code fragment.
    */
   readonly language?: string;
 }
@@ -329,7 +329,7 @@ export interface HoverTextSection {
 export interface Hover {
   /**
    * The hover text to display for the symbol at the hover location. If the text includes
-   * source code, the section will specify which langauge it should be interpreted as.
+   * source code, the section will specify which language it should be interpreted as.
    */
   readonly text: HoverTextSection[];
 
diff --git a/packages/language-service/src/typescript_host.ts b/packages/language-service/src/typescript_host.ts
index 1673f3a4b5..ab311f9a9d 100644
--- a/packages/language-service/src/typescript_host.ts
+++ b/packages/language-service/src/typescript_host.ts
@@ -53,7 +53,7 @@ export class DummyResourceLoader extends ResourceLoader {
 }
 
 /**
- * An implemntation of a `LanguageServiceHost` for a TypeScript project.
+ * An implementation of a `LanguageServiceHost` for a TypeScript project.
  *
  * The `TypeScriptServiceHost` implements the Angular `LanguageServiceHost` using
  * the TypeScript language services.
diff --git a/packages/platform-browser/animations/index.ts b/packages/platform-browser/animations/index.ts
index 05e6b19532..969471c098 100644
--- a/packages/platform-browser/animations/index.ts
+++ b/packages/platform-browser/animations/index.ts
@@ -7,7 +7,7 @@
  */
 
 // This file is not used to build this module. It is only used during editing
-// by the TypeScript language serivce and during build for verifcation. `ngc`
+// by the TypeScript language service and during build for verifcation. `ngc`
 // replaces this file with production index.ts when it rewrites private symbol
 // names.
 
diff --git a/packages/platform-browser/src/dom/events/dom_events.ts b/packages/platform-browser/src/dom/events/dom_events.ts
index 918a121de7..42d44d2acc 100644
--- a/packages/platform-browser/src/dom/events/dom_events.ts
+++ b/packages/platform-browser/src/dom/events/dom_events.ts
@@ -60,7 +60,7 @@ interface TaskData {
 }
 
 // a global listener to handle all dom event,
-// so we do not need to create a closure everytime
+// so we do not need to create a closure every time
 const globalListener = function(event: Event) {
   const symbolName = symbolNames[event.type];
   if (!symbolName) {
@@ -125,7 +125,7 @@ export class DomEventsPlugin extends EventManagerPlugin {
       }
 
       // should call native delegate in case
-      // in some enviroment part of the application
+      // in some environment part of the application
       // will not use the patched Event
       delegate && delegate.apply(this, arguments);
     };
@@ -221,7 +221,7 @@ export class DomEventsPlugin extends EventManagerPlugin {
       }
     } else {
       // not found in taskDatas, the callback may be added inside of ngZone
-      // use native remove listener to remove the calback
+      // use native remove listener to remove the callback
       target[NATIVE_REMOVE_LISTENER].apply(target, [eventName, callback, false]);
     }
   }
diff --git a/packages/platform-browser/test/dom/events/hammer_gestures_spec.ts b/packages/platform-browser/test/dom/events/hammer_gestures_spec.ts
index 10d8a82d95..d9d87393da 100644
--- a/packages/platform-browser/test/dom/events/hammer_gestures_spec.ts
+++ b/packages/platform-browser/test/dom/events/hammer_gestures_spec.ts
@@ -25,7 +25,7 @@ import {HammerGestureConfig, HammerGesturesPlugin} from '@angular/platform-brows
       expect(() => plugin.addGlobalEventListener('document', 'swipe', () => {})).not.toThrowError();
     });
 
-    it('shoud warn user and do nothing when Hammer.js not loaeded', () => {
+    it('should warn user and do nothing when Hammer.js not loaeded', () => {
       spyOn(mockConsole, 'warn');
 
       expect(plugin.supports('swipe')).toBe(false);
diff --git a/packages/platform-server/src/domino_adapter.ts b/packages/platform-server/src/domino_adapter.ts
index 737ca6f50b..8ea4035c80 100644
--- a/packages/platform-server/src/domino_adapter.ts
+++ b/packages/platform-server/src/domino_adapter.ts
@@ -91,7 +91,7 @@ export class DominoAdapter extends BrowserDomAdapter {
   getProperty(el: Element, name: string): any {
     if (name === 'href') {
       // Domino tries tp resolve href-s which we do not want. Just return the
-      // atribute value.
+      // attribute value.
       return this.getAttribute(el, 'href');
     } else if (name === 'innerText') {
       // Domino does not support innerText. Just map it to textContent.
@@ -102,8 +102,8 @@ export class DominoAdapter extends BrowserDomAdapter {
 
   setProperty(el: Element, name: string, value: any) {
     if (name === 'href') {
-      // Eventhough the server renderer reflects any properties to attributes
-      // map 'href' to atribute just to handle when setProperty is directly called.
+      // Even though the server renderer reflects any properties to attributes
+      // map 'href' to attribute just to handle when setProperty is directly called.
       this.setAttribute(el, 'href', value);
     } else if (name === 'innerText') {
       // Domino does not support innerText. Just map it to textContent.
diff --git a/packages/platform-server/test/integration_spec.ts b/packages/platform-server/test/integration_spec.ts
index d0235d2361..092e135153 100644
--- a/packages/platform-server/test/integration_spec.ts
+++ b/packages/platform-server/test/integration_spec.ts
@@ -195,7 +195,7 @@ export class HttpAfterExampleModule {
   declarations: [MyServerApp],
   imports: [ServerModule, HttpClientModule, HttpClientTestingModule],
 })
-export class HttpClientExmapleModule {
+export class HttpClientExampleModule {
 }
 
 @Component({selector: 'app', template: `<img [src]="'link'">`})
@@ -562,7 +562,7 @@ class EscapedTransferStoreModule {
            });
          }));
 
-      it('should call mutliple render hooks', async(() => {
+      it('should call multiple render hooks', async(() => {
            const consoleSpy = spyOn(console, 'warn');
            renderModule(MultiRenderHookModule, {document: doc}).then(output => {
              // title should be added by the render hook.
@@ -675,14 +675,14 @@ class EscapedTransferStoreModule {
       it('can inject HttpClient', async(() => {
            const platform = platformDynamicServer(
                [{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
-           platform.bootstrapModule(HttpClientExmapleModule).then(ref => {
+           platform.bootstrapModule(HttpClientExampleModule).then(ref => {
              expect(ref.injector.get(HttpClient) instanceof HttpClient).toBeTruthy();
            });
          }));
       it('can make HttpClient requests', async(() => {
            const platform = platformDynamicServer(
                [{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
-           platform.bootstrapModule(HttpClientExmapleModule).then(ref => {
+           platform.bootstrapModule(HttpClientExampleModule).then(ref => {
              const mock = ref.injector.get(HttpTestingController) as HttpTestingController;
              const http = ref.injector.get(HttpClient);
              ref.injector.get<NgZone>(NgZone).run(() => {
@@ -697,7 +697,7 @@ class EscapedTransferStoreModule {
       it('requests are macrotasks', async(() => {
            const platform = platformDynamicServer(
                [{provide: INITIAL_CONFIG, useValue: {document: '<app></app>'}}]);
-           platform.bootstrapModule(HttpClientExmapleModule).then(ref => {
+           platform.bootstrapModule(HttpClientExampleModule).then(ref => {
              const mock = ref.injector.get(HttpTestingController) as HttpTestingController;
              const http = ref.injector.get(HttpClient);
              ref.injector.get<NgZone>(NgZone).run(() => {
diff --git a/packages/platform-webworker/test/web_workers/shared/message_bus_util.ts b/packages/platform-webworker/test/web_workers/shared/message_bus_util.ts
index 01566a6935..1ac193f2e1 100644
--- a/packages/platform-webworker/test/web_workers/shared/message_bus_util.ts
+++ b/packages/platform-webworker/test/web_workers/shared/message_bus_util.ts
@@ -11,7 +11,7 @@ import {PostMessageBus, PostMessageBusSink, PostMessageBusSource} from '@angular
 
 
 /*
- * Returns a PostMessageBus thats sink is connected to its own source.
+ * Returns a PostMessageBus that's sink is connected to its own source.
  * Useful for testing the sink and source.
  */
 export function createConnectedMessageBus(): MessageBus {
diff --git a/packages/platform-webworker/test/web_workers/worker/renderer_v2_integration_spec.ts b/packages/platform-webworker/test/web_workers/worker/renderer_v2_integration_spec.ts
index 04fed7095c..0457218190 100644
--- a/packages/platform-webworker/test/web_workers/worker/renderer_v2_integration_spec.ts
+++ b/packages/platform-webworker/test/web_workers/worker/renderer_v2_integration_spec.ts
@@ -31,7 +31,7 @@ let lastCreatedRenderer: Renderer2;
     if (!getDOM().supportsDOMEvents()) return;
     // TODO(tbosch): investigate why this is failing on iOS7 for unrelated reasons
     // Note: it's hard to debug this as SauceLabs starts with iOS8. Maybe drop
-    // iOS7 alltogether?
+    // iOS7 altogether?
     if (browserDetection.isIOS7) return;
 
     let uiRenderStore: RenderStore;
diff --git a/packages/router/test/shared.spec.ts b/packages/router/test/shared.spec.ts
index 605782eb72..f223edac7a 100644
--- a/packages/router/test/shared.spec.ts
+++ b/packages/router/test/shared.spec.ts
@@ -38,7 +38,7 @@ describe('ParamsMap', () => {
     expect(map.get('name')).toEqual(null);
   });
 
-  it('should return `[]` when a mulitple valued element is absent', () => {
+  it('should return `[]` when a multiple valued element is absent', () => {
     const map = convertToParamMap({});
     expect(map.getAll('name')).toEqual([]);
   });
diff --git a/packages/router/test/url_tree.spec.ts b/packages/router/test/url_tree.spec.ts
index 1759e8814a..2b46cb1add 100644
--- a/packages/router/test/url_tree.spec.ts
+++ b/packages/router/test/url_tree.spec.ts
@@ -85,7 +85,7 @@ describe('UrlTree', () => {
         expect(containsTree(t1, t2, false)).toBe(true);
       });
 
-      it('should return true container has its paths splitted into multiple segments', () => {
+      it('should return true container has its paths split into multiple segments', () => {
         const t1 = serializer.parse('/one/(two//left:three)');
         const t2 = serializer.parse('/one/two');
         expect(containsTree(t1, t2, false)).toBe(true);