diff --git a/wp-includes/deprecated.php b/wp-includes/deprecated.php
index e992dba9ab..36d0200609 100644
--- a/wp-includes/deprecated.php
+++ b/wp-includes/deprecated.php
@@ -2731,9 +2731,9 @@ function sanitize_user_object($user, $context = 'display') {
  * @deprecated 3.3
  *
  * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param string $excluded_categories Optional. Excluded categories IDs.
- * @param bool $start Optional, default is true. Whether display link to first or last post.
+ * @param bool $start Optional, default is true. Whether to display link to first or last post.
  * @return string
  */
 function get_boundary_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $start = true) {
@@ -2771,7 +2771,7 @@ function get_boundary_post_rel_link($title = '%title', $in_same_cat = false, $ex
  * @deprecated 3.3
  *
  * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param string $excluded_categories Optional. Excluded categories IDs.
  */
 function start_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
diff --git a/wp-includes/kses.php b/wp-includes/kses.php
index 1e0ee13679..d381cf3758 100644
--- a/wp-includes/kses.php
+++ b/wp-includes/kses.php
@@ -842,7 +842,7 @@ function wp_kses_hair($attr, $allowed_protocols) {
  * Performs different checks for attribute values.
  *
  * The currently implemented checks are "maxlen", "minlen", "maxval", "minval"
- * and "valueless" with even more checks to come soon.
+ * and "valueless".
  *
  * @since 1.0.0
  *
@@ -887,7 +887,7 @@ function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue) {
 			break;
 
 		case 'minval' :
-			# The minval check checks that the attribute value is a positive integer,
+			# The minval check makes sure that the attribute value is a positive integer,
 			# and that it is not smaller than the given value.
 
 			if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value))
@@ -897,7 +897,7 @@ function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue) {
 			break;
 
 		case 'valueless' :
-			# The valueless check checks if the attribute has a value
+			# The valueless check makes sure if the attribute has a value
 			# (like <a href="blah">) or not (<option selected>). If the given value
 			# is a "y" or a "Y", the attribute must not have a value.
 			# If the given value is an "n" or an "N", the attribute must have one.
@@ -954,14 +954,14 @@ function wp_kses_no_null($string) {
 /**
  * Strips slashes from in front of quotes.
  *
- * This function changes the character sequence  \"  to just  ". It leaves all
+ * This function changes the character sequence \" to just ". It leaves all
  * other slashes alone. It's really weird, but the quoting from
  * preg_replace(//e) seems to require this.
  *
  * @since 1.0.0
  *
  * @param string $string String to strip slashes
- * @return string Fixed strings with quoted slashes
+ * @return string Fixed string with quoted slashes
  */
 function wp_kses_stripslashes($string) {
 	return preg_replace('%\\\\"%', '"', $string);
@@ -1042,7 +1042,7 @@ function wp_kses_bad_protocol_once($string, $allowed_protocols) {
  * Callback for wp_kses_bad_protocol_once() regular expression.
  *
  * This function processes URL protocols, checks to see if they're in the
- * white-list or not, and returns different data depending on the answer.
+ * whitelist or not, and returns different data depending on the answer.
  *
  * @access private
  * @since 1.0.0
@@ -1119,7 +1119,7 @@ function wp_kses_named_entities($matches) {
 /**
  * Callback for wp_kses_normalize_entities() regular expression.
  *
- * This function helps wp_kses_normalize_entities() to only accept 16 bit values
+ * This function helps wp_kses_normalize_entities() to only accept 16-bit values
  * and nothing more for &#number; entities.
  *
  * @access private
@@ -1166,7 +1166,7 @@ function wp_kses_normalize_entities3($matches) {
  * Helper function to determine if a Unicode value is valid.
  *
  * @param int $i Unicode value
- * @return bool true if the value was a valid Unicode number
+ * @return bool True if the value was a valid Unicode number
  */
 function valid_unicode($i) {
 	return ( $i == 0x9 || $i == 0xa || $i == 0xd ||
@@ -1342,7 +1342,7 @@ function kses_remove_filters() {
  * will be added.
  *
  * First removes all of the Kses filters in case the current user does not need
- * to have Kses filter the content. If the user does not have unfiltered html
+ * to have Kses filter the content. If the user does not have unfiltered_html
  * capability, then Kses filters are added.
  *
  * @uses kses_remove_filters() Removes the Kses filters
diff --git a/wp-includes/l10n.php b/wp-includes/l10n.php
index 01f468c9c9..50cf57890a 100644
--- a/wp-includes/l10n.php
+++ b/wp-includes/l10n.php
@@ -16,7 +16,7 @@
  * defined. Then it is filtered through the 'locale' filter hook and the value
  * for the locale global set and the locale is returned.
  *
- * The process to get the locale should only be done once but the locale will
+ * The process to get the locale should only be done once, but the locale will
  * always be filtered using the 'locale' hook.
  *
  * @since 1.5.0
@@ -53,7 +53,7 @@ function get_locale() {
 
 /**
  * Retrieves the translation of $text. If there is no translation, or
- * the domain isn't loaded the original text is returned.
+ * the domain isn't loaded, the original text is returned.
  *
  * @see __() Don't use translate() directly, use __()
  * @since 2.2.0
@@ -84,7 +84,7 @@ function translate_with_gettext_context( $text, $context, $domain = 'default' )
 
 /**
  * Retrieves the translation of $text. If there is no translation, or
- * the domain isn't loaded the original text is returned.
+ * the domain isn't loaded, the original text is returned.
  *
  * @see translate() An alias of translate()
  * @since 2.1.0
@@ -99,7 +99,7 @@ function __( $text, $domain = 'default' ) {
 
 /**
  * Retrieves the translation of $text and escapes it for safe use in an attribute.
- * If there is no translation, or the domain isn't loaded the original text is returned.
+ * If there is no translation, or the domain isn't loaded, the original text is returned.
  *
  * @see translate() An alias of translate()
  * @see esc_attr()
@@ -115,7 +115,7 @@ function esc_attr__( $text, $domain = 'default' ) {
 
 /**
  * Retrieves the translation of $text and escapes it for safe use in HTML output.
- * If there is no translation, or the domain isn't loaded the original text is returned.
+ * If there is no translation, or the domain isn't loaded, the original text is returned.
  *
  * @see translate() An alias of translate()
  * @see esc_html()
@@ -177,7 +177,7 @@ function esc_html_e( $text, $domain = 'default' ) {
  * found in more than two places but with different translated context.
  *
  * By including the context in the pot file translators can translate the two
- * string differently.
+ * strings differently.
  *
  * @since 2.8.0
  *
@@ -257,7 +257,7 @@ function _nx($single, $plural, $number, $context, $domain = 'default') {
 /**
  * Register plural strings in POT file, but don't translate them.
  *
- * Used when you want do keep structures with translatable plural strings and
+ * Used when you want to keep structures with translatable plural strings and
  * use them later.
  *
  * Example:
@@ -291,8 +291,8 @@ function _nx_noop( $singular, $plural, $context ) {
  * Translate the result of _n_noop() or _nx_noop()
  *
  * @since 3.1
- * @param array $nooped_plural array with singular, plural and context keys, usually the result of _n_noop() or _nx_noop()
- * @param int $count number of objects
+ * @param array $nooped_plural Array with singular, plural and context keys, usually the result of _n_noop() or _nx_noop()
+ * @param int $count Number of objects
  * @param string $domain Optional. The domain identifier the text should be retrieved in
  */
 function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) {
@@ -316,7 +316,7 @@ function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' )
  *
  * @param string $domain Unique identifier for retrieving translated strings
  * @param string $mofile Path to the .mo file
- * @return bool true on success, false on failure
+ * @return bool True on success, false on failure
  */
 function load_textdomain( $domain, $mofile ) {
 	global $l10n;
@@ -373,7 +373,7 @@ function unload_textdomain( $domain ) {
  * Loads default translated strings based on locale.
  *
  * Loads the .mo file in WP_LANG_DIR constant path from WordPress root. The
- * translated (.mo) file is named based off of the locale.
+ * translated (.mo) file is named based on the locale.
  *
  * @since 1.5.0
  */
@@ -422,8 +422,8 @@ function load_plugin_textdomain( $domain, $abs_rel_path = false, $plugin_rel_pat
  * @since 3.0.0
  *
  * @param string $domain Unique identifier for retrieving translated strings
- * @param strings $mu_plugin_rel_path Relative to WPMU_PLUGIN_DIR directory in which
- * the MO file resides. Defaults is empty string.
+ * @param string $mu_plugin_rel_path Relative to WPMU_PLUGIN_DIR directory in which
+ * the MO file resides. Defaults to empty string.
  */
 function load_muplugin_textdomain( $domain, $mu_plugin_rel_path = '' ) {
 	$locale = apply_filters( 'plugin_locale', get_locale(), $domain );
@@ -520,7 +520,7 @@ function translate_user_role( $name ) {
  * @since 3.0.0
  *
  * @param string $dir A directory in which to search for language files. The default directory is WP_LANG_DIR.
- * @return array Array of language codes or an empty array if no languages are present.  Language codes are formed by stripping the .mo extension from the language file names.
+ * @return array Array of language codes or an empty array if no languages are present. Language codes are formed by stripping the .mo extension from the language file names.
  */
 function get_available_languages( $dir = null ) {
 	$languages = array();
diff --git a/wp-includes/link-template.php b/wp-includes/link-template.php
index ca56f0532d..4f64a48a15 100644
--- a/wp-includes/link-template.php
+++ b/wp-includes/link-template.php
@@ -560,7 +560,7 @@ function get_author_feed_link( $author_id, $feed = '' ) {
 /**
  * Retrieve the feed link for a category.
  *
- * Returns a link to the feed for all post in a given category. A specific feed
+ * Returns a link to the feed for all posts in a given category. A specific feed
  * can be requested or left blank to get the default feed.
  *
  * @package WordPress
@@ -576,9 +576,9 @@ function get_category_feed_link($cat_id, $feed = '') {
 }
 
 /**
- * Retrieve the feed link for a taxonomy.
+ * Retrieve the feed link for a term.
  *
- * Returns a link to the feed for all post in a given term. A specific feed
+ * Returns a link to the feed for all posts in a given term. A specific feed
  * can be requested or left blank to get the default feed.
  *
  * @since 3.0
@@ -586,7 +586,7 @@ function get_category_feed_link($cat_id, $feed = '') {
  * @param int $term_id ID of a category.
  * @param string $taxonomy Optional. Taxonomy of $term_id
  * @param string $feed Optional. Feed type.
- * @return string Link to the feed for the taxonomy specified by $term_id and $taxonomy.
+ * @return string Link to the feed for the term specified by $term_id and $taxonomy.
 */
 function get_term_feed_link( $term_id, $taxonomy = 'category', $feed = '' ) {
 	global $wp_rewrite;
@@ -895,7 +895,7 @@ function get_post_type_archive_feed_link( $post_type, $feed = '' ) {
  * @since 2.3.0
  *
  * @param int $id Optional. Post ID.
- * @param string $context Optional, default to display. How to write the '&', defaults to '&amp;'.
+ * @param string $context Optional, defaults to display. How to write the '&', defaults to '&amp;'.
  * @return string
  */
 function get_edit_post_link( $id = 0, $context = 'display' ) {
@@ -1064,7 +1064,7 @@ function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark =
  *
  * @since 1.5.0
  *
- * @param bool $in_same_cat Optional. Whether post should be in same category.
+ * @param bool $in_same_cat Optional. Whether post should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
  */
@@ -1077,7 +1077,7 @@ function get_previous_post($in_same_cat = false, $excluded_categories = '') {
  *
  * @since 1.5.0
  *
- * @param bool $in_same_cat Optional. Whether post should be in same category.
+ * @param bool $in_same_cat Optional. Whether post should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
  */
@@ -1092,7 +1092,7 @@ function get_next_post($in_same_cat = false, $excluded_categories = '') {
  *
  * @since 2.5.0
  *
- * @param bool $in_same_cat Optional. Whether post should be in same category.
+ * @param bool $in_same_cat Optional. Whether post should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  * @param bool $previous Optional. Whether to retrieve previous post.
  * @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
@@ -1170,9 +1170,9 @@ function get_adjacent_post( $in_same_cat = false, $excluded_categories = '', $pr
  * @since 2.8.0
  *
  * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @param bool $previous Optional, default is true. Whether display link to previous post.
+ * @param bool $previous Optional, default is true. Whether to display link to previous or next post.
  * @return string
  */
 function get_adjacent_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $previous = true) {
@@ -1207,7 +1207,7 @@ function get_adjacent_post_rel_link($title = '%title', $in_same_cat = false, $ex
  * @since 2.8.0
  *
  * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  */
 function adjacent_posts_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
@@ -1218,7 +1218,7 @@ function adjacent_posts_rel_link($title = '%title', $in_same_cat = false, $exclu
 /**
  * Display relational links for the posts adjacent to the current post for single post pages.
  *
- * This is meant to be attached to actions like 'wp_head'.  Do not call this directly in plugins or theme templates.
+ * This is meant to be attached to actions like 'wp_head'. Do not call this directly in plugins or theme templates.
  * @since 3.0.0
  *
  */
@@ -1234,7 +1234,7 @@ function adjacent_posts_rel_link_wp_head() {
  * @since 2.8.0
  *
  * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  */
 function next_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
@@ -1247,7 +1247,7 @@ function next_post_rel_link($title = '%title', $in_same_cat = false, $excluded_c
  * @since 2.8.0
  *
  * @param string $title Optional. Link title format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  */
 function prev_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
@@ -1258,11 +1258,11 @@ function prev_post_rel_link($title = '%title', $in_same_cat = false, $excluded_c
  * Retrieve boundary post.
  *
  * Boundary being either the first or last post by publish date within the constraints specified
- * by in same category or excluded categories.
+ * by $in_same_cat or $excluded_categories.
  *
  * @since 2.8.0
  *
- * @param bool $in_same_cat Optional. Whether returned post should be in same category.
+ * @param bool $in_same_cat Optional. Whether returned post should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  * @param bool $start Optional. Whether to retrieve first or last post.
  * @return object
@@ -1306,7 +1306,7 @@ function get_boundary_post( $in_same_cat = false, $excluded_categories = '', $st
  *
  * @param string $format Optional. Link anchor format.
  * @param string $link Optional. Link permalink format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  */
 function previous_post_link($format='&laquo; %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
@@ -1320,7 +1320,7 @@ function previous_post_link($format='&laquo; %link', $link='%title', $in_same_ca
  *
  * @param string $format Optional. Link anchor format.
  * @param string $link Optional. Link permalink format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
  */
 function next_post_link($format='%link &raquo;', $link='%title', $in_same_cat = false, $excluded_categories = '') {
@@ -1336,9 +1336,9 @@ function next_post_link($format='%link &raquo;', $link='%title', $in_same_cat =
  *
  * @param string $format Link anchor format.
  * @param string $link Link permalink format.
- * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param bool $in_same_cat Optional. Whether link should be in a same category.
  * @param array|string $excluded_categories Optional. Array or comma-separated list of excluded category IDs.
- * @param bool $previous Optional, default is true. Whether display link to previous post.
+ * @param bool $previous Optional, default is true. Whether to display link to previous or next post.
  */
 function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) {
 	if ( $previous && is_attachment() )
@@ -1370,7 +1370,7 @@ function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_cate
 }
 
 /**
- * Retrieve get links for page numbers.
+ * Retrieve links for page numbers.
  *
  * @since 1.5.0
  *
@@ -1432,7 +1432,7 @@ function get_pagenum_link($pagenum = 1) {
 }
 
 /**
- * Retrieve next posts pages link.
+ * Retrieve next posts page link.
  *
  * Backported from 2.1.3 to 2.0.10.
  *
@@ -1454,7 +1454,7 @@ function get_next_posts_page_link($max_page = 0) {
 }
 
 /**
- * Display or return the next posts pages link.
+ * Display or return the next posts page link.
  *
  * @since 0.71
  *
@@ -1471,7 +1471,7 @@ function next_posts( $max_page = 0, $echo = true ) {
 }
 
 /**
- * Return the next posts pages link.
+ * Return the next posts page link.
  *
  * @since 2.7.0
  *
@@ -1500,7 +1500,7 @@ function get_next_posts_link( $label = null, $max_page = 0 ) {
 }
 
 /**
- * Display the next posts pages link.
+ * Display the next posts page link.
  *
  * @since 0.71
  * @uses get_next_posts_link()
@@ -1513,7 +1513,7 @@ function next_posts_link( $label = null, $max_page = 0 ) {
 }
 
 /**
- * Retrieve previous post pages link.
+ * Retrieve previous posts page link.
  *
  * Will only return string, if not on a single page or post.
  *
@@ -1535,7 +1535,7 @@ function get_previous_posts_page_link() {
 }
 
 /**
- * Display or return the previous posts pages link.
+ * Display or return the previous posts page link.
  *
  * @since 0.71
  *
@@ -1551,7 +1551,7 @@ function previous_posts( $echo = true ) {
 }
 
 /**
- * Return the previous posts pages link.
+ * Return the previous posts page link.
  *
  * @since 2.7.0
  *
@@ -1636,7 +1636,7 @@ function posts_nav_link( $sep = '', $prelabel = '', $nxtlabel = '' ) {
 }
 
 /**
- * Retrieve page numbers links.
+ * Retrieve comments page number link.
  *
  * @since 2.7.0
  *
@@ -1672,7 +1672,7 @@ function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) {
 }
 
 /**
- * Return the link to next comments pages.
+ * Return the link to next comments page.
  *
  * @since 2.7.1
  *
@@ -1706,7 +1706,7 @@ function get_next_comments_link( $label = '', $max_page = 0 ) {
 }
 
 /**
- * Display the link to next comments pages.
+ * Display the link to next comments page.
  *
  * @since 2.7.0
  *
@@ -1759,7 +1759,7 @@ function previous_comments_link( $label = '' ) {
  * @see paginate_links()
  * @since 2.7.0
  *
- * @param string|array $args Optional args. See paginate_links.
+ * @param string|array $args Optional args. See paginate_links().
  * @return string Markup for pagination links.
 */
 function paginate_comments_links($args = array()) {
@@ -1825,7 +1825,7 @@ function get_shortcut_link() {
 /**
  * Retrieve the home url for the current site.
  *
- * Returns the 'home' option with the appropriate protocol,  'https' if
+ * Returns the 'home' option with the appropriate protocol, 'https' if
  * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
  * overridden.
  *
@@ -1835,7 +1835,7 @@ function get_shortcut_link() {
  * @uses get_home_url()
  *
  * @param  string $path   (optional) Path relative to the home url.
- * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
+ * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http', 'https'.
  * @return string Home url link with optional path appended.
 */
 function home_url( $path = '', $scheme = null ) {
@@ -1845,7 +1845,7 @@ function home_url( $path = '', $scheme = null ) {
 /**
  * Retrieve the home url for a given site.
  *
- * Returns the 'home' option with the appropriate protocol,  'https' if
+ * Returns the 'home' option with the appropriate protocol, 'https' if
  * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
  * overridden.
  *
@@ -1854,7 +1854,7 @@ function home_url( $path = '', $scheme = null ) {
  *
  * @param  int $blog_id   (optional) Blog ID. Defaults to current blog.
  * @param  string $path   (optional) Path relative to the home url.
- * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
+ * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http', 'https'.
  * @return string Home url link with optional path appended.
 */
 function get_home_url( $blog_id = null, $path = '', $scheme = null ) {
@@ -1880,7 +1880,7 @@ function get_home_url( $blog_id = null, $path = '', $scheme = null ) {
 /**
  * Retrieve the site url for the current site.
  *
- * Returns the 'site_url' option with the appropriate protocol,  'https' if
+ * Returns the 'site_url' option with the appropriate protocol, 'https' if
  * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
  * overridden.
  *
@@ -1890,7 +1890,7 @@ function get_home_url( $blog_id = null, $path = '', $scheme = null ) {
  * @uses get_site_url()
  *
  * @param string $path Optional. Path relative to the site url.
- * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
+ * @param string $scheme Optional. Scheme to give the site url context. Currently 'http', 'https', 'login', 'login_post', or 'admin'.
  * @return string Site url link with optional path appended.
 */
 function site_url( $path = '', $scheme = null ) {
@@ -1900,7 +1900,7 @@ function site_url( $path = '', $scheme = null ) {
 /**
  * Retrieve the site url for a given site.
  *
- * Returns the 'site_url' option with the appropriate protocol,  'https' if
+ * Returns the 'site_url' option with the appropriate protocol, 'https' if
  * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
  * overridden.
  *
@@ -1909,7 +1909,7 @@ function site_url( $path = '', $scheme = null ) {
  *
  * @param int $blog_id (optional) Blog ID. Defaults to current blog.
  * @param string $path Optional. Path relative to the site url.
- * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
+ * @param string $scheme Optional. Scheme to give the site url context. Currently 'http', 'https', 'login', 'login_post', or 'admin'.
  * @return string Site url link with optional path appended.
 */
 function get_site_url( $blog_id = null, $path = '', $scheme = null ) {
@@ -1946,9 +1946,9 @@ function get_site_url( $blog_id = null, $path = '', $scheme = null ) {
  * @package WordPress
  * @since 2.6.0
  *
- * @param string $path Optional path relative to the admin url
+ * @param string $path Optional path relative to the admin url.
  * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
- * @return string Admin url link with optional path appended
+ * @return string Admin url link with optional path appended.
 */
 function admin_url( $path = '', $scheme = 'admin' ) {
 	return get_admin_url(null, $path, $scheme);
@@ -1961,9 +1961,9 @@ function admin_url( $path = '', $scheme = 'admin' ) {
  * @since 3.0.0
  *
  * @param int $blog_id (optional) Blog ID. Defaults to current blog.
- * @param string $path Optional path relative to the admin url
+ * @param string $path Optional path relative to the admin url.
  * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
- * @return string Admin url link with optional path appended
+ * @return string Admin url link with optional path appended.
 */
 function get_admin_url( $blog_id = null, $path = '', $scheme = 'admin' ) {
 	$url = get_site_url($blog_id, 'wp-admin/', $scheme);
@@ -2054,7 +2054,7 @@ function plugins_url($path = '', $plugin = '') {
 /**
  * Retrieve the site url for the current network.
  *
- * Returns the site url with the appropriate protocol,  'https' if
+ * Returns the site url with the appropriate protocol, 'https' if
  * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
  * overridden.
  *
@@ -2062,7 +2062,7 @@ function plugins_url($path = '', $plugin = '') {
  * @since 3.0.0
  *
  * @param string $path Optional. Path relative to the site url.
- * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
+ * @param string $scheme Optional. Scheme to give the site url context. Currently 'http', 'https', 'login', 'login_post', or 'admin'.
  * @return string Site url link with optional path appended.
 */
 function network_site_url( $path = '', $scheme = null ) {
@@ -2094,7 +2094,7 @@ function network_site_url( $path = '', $scheme = null ) {
 /**
  * Retrieve the home url for the current network.
  *
- * Returns the home url with the appropriate protocol,  'https' if
+ * Returns the home url with the appropriate protocol, 'https' if
  * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
  * overridden.
  *
@@ -2102,7 +2102,7 @@ function network_site_url( $path = '', $scheme = null ) {
  * @since 3.0.0
  *
  * @param  string $path   (optional) Path relative to the home url.
- * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http','https'
+ * @param  string $scheme (optional) Scheme to give the home url context. Currently 'http', 'https'.
  * @return string Home url link with optional path appended.
 */
 function network_home_url( $path = '', $scheme = null ) {
@@ -2130,9 +2130,9 @@ function network_home_url( $path = '', $scheme = null ) {
  * @package WordPress
  * @since 3.0.0
  *
- * @param string $path Optional path relative to the admin url
+ * @param string $path Optional path relative to the admin url.
  * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
- * @return string Admin url link with optional path appended
+ * @return string Admin url link with optional path appended.
 */
 function network_admin_url( $path = '', $scheme = 'admin' ) {
 	if ( ! is_multisite() )
@@ -2152,9 +2152,9 @@ function network_admin_url( $path = '', $scheme = 'admin' ) {
  * @package WordPress
  * @since 3.0.0
  *
- * @param string $path Optional path relative to the admin url
+ * @param string $path Optional path relative to the admin url.
  * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
- * @return string Admin url link with optional path appended
+ * @return string Admin url link with optional path appended.
 */
 function user_admin_url( $path = '', $scheme = 'admin' ) {
 	$url = network_site_url('wp-admin/user/', $scheme);
@@ -2171,9 +2171,9 @@ function user_admin_url( $path = '', $scheme = 'admin' ) {
  * @package WordPress
  * @since 3.1.0
  *
- * @param string $path Optional path relative to the admin url
+ * @param string $path Optional path relative to the admin url.
  * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
- * @return string Admin url link with optional path appended
+ * @return string Admin url link with optional path appended.
 */
 function self_admin_url($path = '', $scheme = 'admin') {
 	if ( is_network_admin() )
@@ -2187,16 +2187,16 @@ function self_admin_url($path = '', $scheme = 'admin') {
 /**
  * Get the URL to the user's dashboard.
  *
- * If a user does not belong to any sites, the global user dashboard is used.  If the user belongs to the current site,
- * the dashboard for the current site is returned.  If the user cannot edit the current site, the dashboard to the user's
+ * If a user does not belong to any site, the global user dashboard is used.  If the user belongs to the current site,
+ * the dashboard for the current site is returned. If the user cannot edit the current site, the dashboard to the user's
  * primary blog is returned.
  *
  * @since 3.1.0
  *
  * @param int $user_id User ID
- * @param string $path Optional path relative to the dashboard.  Use only paths known to both blog and user admins.
+ * @param string $path Optional path relative to the dashboard. Use only paths known to both blog and user admins.
  * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
- * @return string Dashboard url link with optional path appended
+ * @return string Dashboard url link with optional path appended.
  */
 function get_dashboard_url( $user_id, $path = '', $scheme = 'admin' ) {
 	$user_id = (int) $user_id;
@@ -2229,7 +2229,7 @@ function get_dashboard_url( $user_id, $path = '', $scheme = 'admin' ) {
  *
  * @param int $user User ID
  * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
- * @return string Dashboard url link with optional path appended
+ * @return string Dashboard url link with optional path appended.
  */
 function get_edit_profile_url( $user, $scheme = 'admin' ) {
 	$user = (int) $user;
@@ -2245,7 +2245,7 @@ function get_edit_profile_url( $user, $scheme = 'admin' ) {
 }
 
 /**
- * Output rel=canonical for singular queries
+ * Output rel=canonical for singular queries.
  *
  * @package WordPress
  * @since 2.9.0
@@ -2265,14 +2265,14 @@ function rel_canonical() {
 /**
  * Return a shortlink for a post, page, attachment, or blog.
  *
- * This function exists to provide a shortlink tag that all themes and plugins can target.  A plugin must hook in to
- * provide the actual shortlinks.  Default shortlink support is limited to providing ?p= style links for posts.
- * Plugins can short circuit this function via the pre_get_shortlink filter or filter the output
+ * This function exists to provide a shortlink tag that all themes and plugins can target. A plugin must hook in to
+ * provide the actual shortlinks. Default shortlink support is limited to providing ?p= style links for posts.
+ * Plugins can short-circuit this function via the pre_get_shortlink filter or filter the output
  * via the get_shortlink filter.
  *
  * @since 3.0.0.
  *
- * @param int $id A post or blog id.  Default is 0, which means the current post or blog.
+ * @param int $id A post or blog id. Default is 0, which means the current post or blog.
  * @param string $context Whether the id is a 'blog' id, 'post' id, or 'media' id. If 'post', the post_type of the post is consulted. If 'query', the current query is consulted to determine the id and context. Default is 'post'.
  * @param bool $allow_slugs Whether to allow post slugs in the shortlink. It is up to the plugin how and whether to honor this.
  * @return string A shortlink or an empty string if no shortlink exists for the requested resource or if shortlinks are not enabled.
@@ -2352,10 +2352,10 @@ function wp_shortlink_header() {
  *
  * @since 3.0.0
  *
- * @param string $text Optional The link text or HTML to be displayed.  Defaults to 'This is the short link.'
- * @param string $title Optional The tooltip for the link.  Must be sanitized.  Defaults to the sanitized post title.
+ * @param string $text Optional The link text or HTML to be displayed. Defaults to 'This is the short link.'
+ * @param string $title Optional The tooltip for the link. Must be sanitized. Defaults to the sanitized post title.
  * @param string $before Optional HTML to display before the link.
- * @param string $before Optional HTML to display after the link.
+ * @param string $after Optional HTML to display after the link.
  */
 function the_shortlink( $text = '', $title = '', $before = '', $after = '' ) {
 	global $post;
diff --git a/wp-includes/load.php b/wp-includes/load.php
index 056f85b826..c70eeeb9e1 100644
--- a/wp-includes/load.php
+++ b/wp-includes/load.php
@@ -186,7 +186,7 @@ function wp_maintenance() {
  *
  * @access private
  * @since 0.71
- * @global int $timestart Seconds and Microseconds added together from when function is called.
+ * @global int $timestart Seconds and microseconds added together from when function is called.
  * @return bool Always returns true.
  */
 function timer_start() {
@@ -210,11 +210,11 @@ function timer_start() {
  * timer_stop(1);
  * </code>
  * which will do what the above does. If you need the result, you can assign it to a variable, but
- * most cases, you only need to echo it.
+ * in most cases, you only need to echo it.
  *
  * @since 0.71
- * @global int $timestart Seconds and Microseconds added together from when timer_start() is called
- * @global int $timeend  Seconds and Microseconds added together from when function is called
+ * @global int $timestart Seconds and microseconds added together from when timer_start() is called
+ * @global int $timeend Seconds and microseconds added together from when function is called
  *
  * @param int $display Use '0' or null to not echo anything and 1 to echo the total time
  * @param int $precision The amount of digits from the right of the decimal to display. Default is 3.
@@ -287,9 +287,9 @@ function wp_debug_mode() {
  *
  * To set directory manually, define <code>WP_LANG_DIR</code> in wp-config.php.
  *
- * If the language directory exists within WP_CONTENT_DIR that is used
- * Otherwise if the language directory exists within WPINC, that's used
- * Finally, If neither of the preceeding directories is found,
+ * If the language directory exists within WP_CONTENT_DIR, that is used.
+ * Otherwise if the language directory exists within WPINC, that's used.
+ * Finally, if neither of the preceding directories are found,
  * WP_CONTENT_DIR/languages is used.
  *
  * The WP_LANG_DIR constant was introduced in 2.1.0.
@@ -396,7 +396,7 @@ function wp_start_object_cache() {
 	} else if ( !$_wp_using_ext_object_cache && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
 		// Sometimes advanced-cache.php can load object-cache.php before it is loaded here.
 		// This breaks the function_exists check above and can result in $_wp_using_ext_object_cache
-		// being set incorrectly.  Double check if an external cache exists.
+		// being set incorrectly. Double check if an external cache exists.
 		$_wp_using_ext_object_cache = true;
 	}
 
diff --git a/wp-includes/locale.php b/wp-includes/locale.php
index 3eeffecc66..1b529bae23 100644
--- a/wp-includes/locale.php
+++ b/wp-includes/locale.php
@@ -25,7 +25,7 @@ class WP_Locale {
 	 * Stores the translated strings for the one character weekday names.
 	 *
 	 * There is a hack to make sure that Tuesday and Thursday, as well
-	 * as Sunday and Saturday don't conflict. See init() method for more.
+	 * as Sunday and Saturday, don't conflict. See init() method for more.
 	 *
 	 * @see WP_Locale::init() for how to handle the hack.
 	 *
diff --git a/wp-includes/media.php b/wp-includes/media.php
index 552e1f2cc6..5ec0338fcb 100644
--- a/wp-includes/media.php
+++ b/wp-includes/media.php
@@ -17,7 +17,7 @@
  * than the supported will result in the content_width size or 500 if that is
  * not set.
  *
- * Finally, there is a filter named, 'editor_max_image_size' that will be called
+ * Finally, there is a filter named 'editor_max_image_size', that will be called
  * on the calculated array for width and height, respectively. The second
  * parameter will be the value that was in the $size parameter. The returned
  * type for the hook is an array with the width as the first element and the
@@ -177,6 +177,8 @@ function image_downsize($id, $size = 'medium') {
 
 /**
  * Registers a new image size
+ *
+ * @since 2.9.0
  */
 function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
 	global $_wp_additional_image_sizes;
@@ -185,6 +187,8 @@ function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
 
 /**
  * Registers an image size for the post thumbnail
+ *
+ * @since 2.9.0
  */
 function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {
 	add_image_size( 'post-thumbnail', $width, $height, $crop );
@@ -329,7 +333,7 @@ function wp_constrain_dimensions( $current_width, $current_height, $max_width=0,
  * @param int $dest_w New width.
  * @param int $dest_h New height.
  * @param bool $crop Optional, default is false. Whether to crop image or resize.
- * @return bool|array False, on failure. Returned array matches parameters for imagecopyresampled() PHP function.
+ * @return bool|array False on failure. Returned array matches parameters for imagecopyresampled() PHP function.
  */
 function image_resize_dimensions($orig_w, $orig_h, $dest_w, $dest_h, $crop = false) {
 
@@ -398,7 +402,7 @@ function image_resize_dimensions($orig_w, $orig_h, $dest_w, $dest_h, $crop = fal
  * @param int $max_w Maximum width to resize to.
  * @param int $max_h Maximum height to resize to.
  * @param bool $crop Optional. Whether to crop image or resize.
- * @param string $suffix Optional. File Suffix.
+ * @param string $suffix Optional. File suffix.
  * @param string $dest_path Optional. New image file path.
  * @param int $jpeg_quality Optional, default is 90. Image quality percentage.
  * @return mixed WP_Error on failure. String with new destination path.
@@ -669,9 +673,9 @@ function wp_get_attachment_image($attachment_id, $size = 'thumbnail', $icon = fa
 }
 
 /**
- * Adds a 'wp-post-image' class to post thumbnail thumbnails
+ * Adds a 'wp-post-image' class to post thumbnails
  * Uses the begin_fetch_post_thumbnail_html and end_fetch_post_thumbnail_html action hooks to
- * dynamically add/remove itself so as to only filter post thumbnail thumbnails
+ * dynamically add/remove itself so as to only filter post thumbnails
  *
  * @since 2.9.0
  * @param array $attr Attributes including src, class, alt, title
@@ -752,7 +756,7 @@ add_shortcode('gallery', 'gallery_shortcode');
  *
  * @since 2.5.0
  *
- * @param array $attr Attributes attributed to the shortcode.
+ * @param array $attr Attributes of the shortcode.
  * @return string HTML content to display gallery.
  */
 function gallery_shortcode($attr) {
@@ -906,7 +910,7 @@ function next_image_link($size = 'thumbnail', $text = false) {
  *
  * @since 2.5.0
  *
- * @param bool $prev Optional. Default is true to display previous link, true for next.
+ * @param bool $prev Optional. Default is true to display previous link, false for next.
  */
 function adjacent_image_link($prev = true, $size = 'thumbnail', $text = false) {
 	global $post;
@@ -1079,7 +1083,7 @@ class WP_Embed {
 	}
 
 	/**
-	 * If a post/page was saved, then output Javascript to make
+	 * If a post/page was saved, then output JavaScript to make
 	 * an AJAX request that will call WP_Embed::cache_oembed().
 	 */
 	function maybe_run_ajax_cache() {
@@ -1373,7 +1377,7 @@ function wp_expand_dimensions( $example_width, $example_height, $max_width, $max
  * @uses WP_oEmbed::get_html()
  *
  * @param string $url The URL that should be embedded.
- * @param array $args Addtional arguments and parameters.
+ * @param array $args Additional arguments and parameters.
  * @return string The original URL on failure or the embed HTML on success.
  */
 function wp_oembed_get( $url, $args = '' ) {
diff --git a/wp-includes/pomo/translations.php b/wp-includes/pomo/translations.php
index 465b168316..951583ace6 100644
--- a/wp-includes/pomo/translations.php
+++ b/wp-includes/pomo/translations.php
@@ -81,7 +81,7 @@ class Translations {
 	/**
 	 * Given the number of items, returns the 0-based index of the plural form to use
 	 *
-	 * Here, in the base Translations class, the commong logic for English is implmented:
+	 * Here, in the base Translations class, the common logic for English is implemented:
 	 * 	0 if there is one element, 1 otherwise
 	 *
 	 * This function should be overrided by the sub-classes. For example MO/PO can derive the logic
diff --git a/wp-includes/post-thumbnail-template.php b/wp-includes/post-thumbnail-template.php
index 38ae9039a9..1377cc11b8 100644
--- a/wp-includes/post-thumbnail-template.php
+++ b/wp-includes/post-thumbnail-template.php
@@ -50,7 +50,7 @@ function the_post_thumbnail( $size = 'post-thumbnail', $attr = '' ) {
 /**
  * Update cache for thumbnails in the current loop
  *
- * @sicne 3.2
+ * @since 3.2
  */
 function update_post_thumbnail_cache() {
 	global $wp_query;