diff --git a/aio/content/guide/glossary.md b/aio/content/guide/glossary.md
index d90055f3f2..799dc2421c 100644
--- a/aio/content/guide/glossary.md
+++ b/aio/content/guide/glossary.md
@@ -77,7 +77,7 @@ A way to initialize and launch an app or system.
 
 In Angular, an app's root NgModule (`AppModule`) has a `bootstrap` property that identifies the app's top-level [components](guide/glossary#component). 
 During the bootstrap process, Angular creates and inserts these components into the `index.html` host web page.
-You can bootstrap multiple apps in the same `index.html`. Each app ccontains its own components.
+You can bootstrap multiple apps in the same `index.html`. Each app contains its own components.
 
 Learn more in [Bootstrapping](guide/bootstrapping).
 
diff --git a/aio/content/guide/releases.md b/aio/content/guide/releases.md
index 9e09cd8d9e..4082da8004 100644
--- a/aio/content/guide/releases.md
+++ b/aio/content/guide/releases.md
@@ -70,7 +70,7 @@ The following table contains our current target release dates for the next two m
  September/October 2018 | 7.0.0          | ^6.0.0
  March/April 2019       | 8.0.0          | ^7.0.0
 
- Compatiblity note: The primary goal of the backwards compatibility promise is to ensure that changes in the core framework and tooling don't break the existing ecosystem of components and applications and don't put undue upgrade/migration burden on Angular application and component authors.
+ Compatibility note: The primary goal of the backward compatibility promise is to ensure that changes in the core framework and tooling don't break the existing ecosystem of components and applications and don't put undue upgrade/migration burden on Angular application and component authors.
 
 
 {@a lts}
diff --git a/aio/content/guide/styleguide.md b/aio/content/guide/styleguide.md
index f99656da6f..204a5922d1 100644
--- a/aio/content/guide/styleguide.md
+++ b/aio/content/guide/styleguide.md
@@ -45,7 +45,7 @@ If you fully understand the meaning behind the guideline and have a good reason
 
 
 
-**Avoid** indicates something you should almost never do. Code examples to *avoid* have an unmistakeable red header.
+**Avoid** indicates something you should almost never do. Code examples to *avoid* have an unmistakable red header.
 
 
 </div>
@@ -2865,7 +2865,7 @@ and more difficult in a flat structure.
 
 
 
-**Why?** NgModules make it easier to isolate, test, and re-use features.
+**Why?** NgModules make it easier to isolate, test, and reuse features.
 
 
 </div>