diff --git a/doc/accessibility.html b/doc/accessibility.html
index d9634a91f..a6bc5225a 100644
--- a/doc/accessibility.html
+++ b/doc/accessibility.html
@@ -644,7 +644,7 @@ <h2 id="phet-info">PhET Specific Information</h2>
 
     <h4 id="enable-a11y">Enabling A11y</h4>
     <p>
-      Accessibility features are hidden behind an <code>?supportsDescriptions</code> query parameter. This hides a11y features
+      Accessibility features are hidden behind an <code>?supportsDescription</code> query parameter. This hides a11y features
       until they are ready for production. When ready, accessibility can be enabled by default by adding
       <code>Sim</code>
       option <code>accessibility: true</code> to <code>{{sim}}-main.js</code>.
@@ -676,7 +676,7 @@ <h4 id="a11y-strings">A11y Specific Strings</h4>
 
     <h4>Beginning a11y work on a sim</h4>
     <p>
-      When beginning a11y work in a simulation, add <code>"supportsInteractiveDescriptions": true</code> to the sim's package.json.
+      When beginning a11y work in a simulation, add <code>"supportsInteractiveDescription": true</code> to the sim's package.json.
       Then regenerate the lists to add the simulation to perennial/data/interactive-descriptions list, and generate an
       a11y-view HTML document to assist with development (<code>grunt generate-a11y-view-html</code>).
     </p>
diff --git a/js/accessibility/pdom/PDOMUtils.js b/js/accessibility/pdom/PDOMUtils.js
index 6559d69fa..f66461697 100644
--- a/js/accessibility/pdom/PDOMUtils.js
+++ b/js/accessibility/pdom/PDOMUtils.js
@@ -308,7 +308,7 @@ const PDOMUtils = {
     assert && assert( domElement instanceof Element ); // parent to HTMLElement, to support other namespaces
     assert && assert( typeof textContent === 'string' );
 
-    // TODO: this line must be removed to support i18n Interactive Descriptions, see https://github.com/phetsims/chipper/issues/798
+    // TODO: this line must be removed to support i18n Interactive Description, see https://github.com/phetsims/chipper/issues/798
     const textWithoutEmbeddingMarks = stripEmbeddingMarks( textContent );
 
     // Disallow any unfilled template variables to be set in the PDOM.
diff --git a/js/nodes/Node.js b/js/nodes/Node.js
index a41ae3bb2..ece6f99c3 100644
--- a/js/nodes/Node.js
+++ b/js/nodes/Node.js
@@ -5696,7 +5696,7 @@ Node.DEFAULT_OPTIONS = DEFAULT_OPTIONS;
 
 scenery.register( 'Node', Node );
 
-// Node is composed with this feature of Interactive Descriptions
+// Node is composed with this feature of Interactive Description
 ParallelDOM.compose( Node );
 
 // @public {IOType}