diff --git a/aio/content/guide/glossary.md b/aio/content/guide/glossary.md
index 37aa102426..5cabe26ed2 100644
--- a/aio/content/guide/glossary.md
+++ b/aio/content/guide/glossary.md
@@ -593,7 +593,7 @@ Compare to [NgModule](#ngmodule).
 
 ## ngcc
 
-Angular compatability compiler.
+Angular compatibility compiler.
 If you build your app using [Ivy](#ivy), but it depends on libraries have not been compiled with Ivy, the CLI uses `ngcc` to automatically update the dependent libraries to use Ivy.