diff --git a/addons/addon-clipboard/typings/addon-clipboard.d.ts b/addons/addon-clipboard/typings/addon-clipboard.d.ts
index f8e024ac3..f5a892e21 100644
--- a/addons/addon-clipboard/typings/addon-clipboard.d.ts
+++ b/addons/addon-clipboard/typings/addon-clipboard.d.ts
@@ -82,7 +82,7 @@ declare module '@xterm/addon-clipboard' {
   /**
    * The clipboard provider interface that enables xterm.js to access the browser clipboard.
    *
-   * Note this this clipboard provider does not implement own cut buffers as xterm does,
+   * Note that this clipboard provider does not implement own cut buffers as xterm does,
    * but redirect the selection parameter always to navigator.clipboard.
    */
   export class BrowserClipboardProvider implements IClipboardProvider{
diff --git a/addons/addon-webgl/typings/addon-webgl.d.ts b/addons/addon-webgl/typings/addon-webgl.d.ts
index 37b6b8a95..37acbb8a9 100644
--- a/addons/addon-webgl/typings/addon-webgl.d.ts
+++ b/addons/addon-webgl/typings/addon-webgl.d.ts
@@ -23,12 +23,12 @@ declare module '@xterm/addon-webgl' {
     public readonly onChangeTextureAtlas: IEvent<HTMLCanvasElement>;
 
     /**
-     * An event that is fired when the a new page is added to the texture atlas.
+     * An event that is fired when a new page is added to the texture atlas.
      */
     public readonly onAddTextureAtlasCanvas: IEvent<HTMLCanvasElement>;
 
     /**
-     * An event that is fired when the a page is removed from the texture atlas.
+     * An event that is fired when a page is removed from the texture atlas.
      */
     public readonly onRemoveTextureAtlasCanvas: IEvent<HTMLCanvasElement>;
 
diff --git a/src/common/InputHandler.ts b/src/common/InputHandler.ts
index 9a8b84888..7ea1c2f42 100644
--- a/src/common/InputHandler.ts
+++ b/src/common/InputHandler.ts
@@ -550,7 +550,7 @@ export class InputHandler extends Disposable implements IInputHandler {
 
       // get charset replacement character
       // charset is only defined for ASCII, therefore we only
-      // search for an replacement char if code < 127
+      // search for a replacement char if code < 127
       if (code < 127 && charset) {
         const ch = charset[String.fromCharCode(code)];
         if (ch) {
diff --git a/src/common/Types.ts b/src/common/Types.ts
index 9e1481fd3..971030944 100644
--- a/src/common/Types.ts
+++ b/src/common/Types.ts
@@ -234,7 +234,7 @@ export interface ICoreMouseProtocol {
 /**
  * CoreMouseEncoding
  * The tracking encoding can be registered and activated at the MouseStateService.
- * If a ICoreMouseEvent passes all procotol restrictions it will be encoded
+ * If a ICoreMouseEvent passes all protocol restrictions it will be encoded
  * with the active encoding and sent out.
  * Note: Returning an empty string will supress sending a mouse report,
  * which can be used to skip creating falsey reports in limited encodings
diff --git a/test/playwright/SharedRendererTests.ts b/test/playwright/SharedRendererTests.ts
index db5c4c073..1983fd410 100644
--- a/test/playwright/SharedRendererTests.ts
+++ b/test/playwright/SharedRendererTests.ts
@@ -980,7 +980,7 @@ export function injectSharedRendererTests(ctx: ISharedRendererTestContext): void
   });
 
   test.describe('selectionInactiveBackground', async () => {
-    test('should render the the inactive selection when not focused', async () => {
+    test('should render the inactive selection when not focused', async () => {
       const theme: ITheme = {
         selectionBackground: '#FF000080',
         selectionInactiveBackground: '#0000FF80'