diff --git a/CHANGELOG.md b/CHANGELOG.md
index 388e0013..bbc49bef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -507,7 +507,7 @@ Great thanks to @pikax for #311, making most of the APIs better aligned with the
 # 0.3.0
 
 - Improve TypeScript type definitions.
-- Fix `context.slots` not being avaliable before render [#84](https://github.com/vuejs/composition-api/issues/84).
+- Fix `context.slots` not being available before render [#84](https://github.com/vuejs/composition-api/issues/84).
 
 ## Changed
 
diff --git a/src/component/componentOptions.ts b/src/component/componentOptions.ts
index a55a950c..9a177382 100644
--- a/src/component/componentOptions.ts
+++ b/src/component/componentOptions.ts
@@ -8,22 +8,22 @@ export interface SetupContext {
   readonly slots: Readonly<{ [key in string]?: (...args: any[]) => VNode[] }>
 
   /**
-   * @deprecated not avaliable in Vue 3
+   * @deprecated not available in Vue 3
    */
   readonly parent: ComponentInstance | null
 
   /**
-   * @deprecated not avaliable in Vue 3
+   * @deprecated not available in Vue 3
    */
   readonly root: ComponentInstance
 
   /**
-   * @deprecated not avaliable in Vue 3
+   * @deprecated not available in Vue 3
    */
   readonly listeners: { [key in string]?: Function }
 
   /**
-   * @deprecated not avaliable in Vue 3
+   * @deprecated not available in Vue 3
    */
   readonly refs: { [key: string]: Vue | Element | Vue[] | Element[] }