diff --git a/index.bs b/index.bs
index 95ffbd4..90654de 100644
--- a/index.bs
+++ b/index.bs
@@ -111,7 +111,7 @@ partial interface AI {
 [Exposed=(Window,Worker), SecureContext]
 interface AISummarizerFactory {
   Promise<AISummarizer> create(optional AISummarizerCreateOptions options = {});
-  Promise<AICapabilityAvailability> available(optional AISummarizerCreateCoreOptions options = {});
+  Promise<AICapabilityAvailability> availability(optional AISummarizerCreateCoreOptions options = {});
 };
 
 [Exposed=(Window,Worker), SecureContext]
@@ -393,7 +393,7 @@ The <dfn attribute for="AI">summarizer</dfn> getter steps are to return [=this=]
 <h3 id="summarizer-availability">Availability</h3>
 
 <div algorithm>
-  The <dfn method for="AISummarizerFactory">available(|options|)</dfn> method steps are:
+  The <dfn method for="AISummarizerFactory">availability(|options|)</dfn> method steps are:
 
   1. If [=this=]'s [=relevant global object=] is a {{Window}} whose [=associated Document=] is not [=Document/fully active=], then return [=a promise rejected with=] an "{{InvalidStateError}}" {{DOMException}}.
 
@@ -569,25 +569,25 @@ All of these [=struct/items=] are [=sets=] of strings representing [=Unicode can
 
     One way this could be implemented would be for [=summarizer language availabilities=] to return that "`zh-Hant`" is in the [=language availabilities/readily available input languages=], and "`zh`" and "`zh-Hans`" are in the [=language availabilities/after-download available input languages=]. This return value conforms to the requirements of the [=language tag set completeness rules=], in ensuring that "`zh`" is present. Per <a class="allow-2119" href="#readily-or-after-download-implementation-defined">the "should"-level guidance</a>, the implementation has determined that "`zh`" belongs in the set of [=language availabilities/after-download available input languages=], with "`zh-Hans`", instead of in the set of [=language availabilities/readily available input languages=], with "`zh-Hant`".
 
-    Combined with the use of [$LookupMatchingLocaleByBestFit$], this means {{AISummarizerFactory/available()}} will give the following answers:
+    Combined with the use of [$LookupMatchingLocaleByBestFit$], this means {{AISummarizerFactory/availability()}} will give the following answers:
 
     <xmp class="language-js">
-    function inputLangAvailable(languageTag) {
-      return ai.summarizer.available({
+    function inputLangAvailability(languageTag) {
+      return ai.summarizer.availability({
         expectedInputLanguages: [languageTag]
       });
     }
 
-    inputLangAvailable("zh") === "after-download";
-    inputLangAvailable("zh-Hant") === "readily";
-    inputLangAvailable("zh-Hans") === "after-download";
+    inputLangAvailability("zh") === "after-download";
+    inputLangAvailability("zh-Hant") === "readily";
+    inputLangAvailability("zh-Hans") === "after-download";
 
-    inputLangAvailable("zh-TW") === "readily";          // zh-TW will best-fit to zh-Hant
-    inputLangAvailable("zh-HK") === "readily";          // zh-HK will best-fit to zh-Hant
-    inputLangAvailable("zh-CN") === "after-download";   // zh-CN will best-fit to zh-Hans
+    inputLangAvailability("zh-TW") === "readily";          // zh-TW will best-fit to zh-Hant
+    inputLangAvailability("zh-HK") === "readily";          // zh-HK will best-fit to zh-Hant
+    inputLangAvailability("zh-CN") === "after-download";   // zh-CN will best-fit to zh-Hans
 
-    inputLangAvailable("zh-BR") === "after-download";   // zh-BR will best-fit to zh
-    inputLangAvailable("zh-Kana") === "after-download"; // zh-Kana will best-fit to zh
+    inputLangAvailability("zh-BR") === "after-download";   // zh-BR will best-fit to zh
+    inputLangAvailability("zh-Kana") === "after-download"; // zh-Kana will best-fit to zh
     </xmp>
   </div>
 </div>
@@ -1026,7 +1026,7 @@ Just IDL for now; full spec coming!
 [Exposed=(Window,Worker), SecureContext]
 interface AIWriterFactory {
   Promise<AIWriter> create(optional AIWriterCreateOptions options = {});
-  Promise<AICapabilityAvailability> available(optional AIWriterCreateCoreOptions options = {});
+  Promise<AICapabilityAvailability> availability(optional AIWriterCreateCoreOptions options = {});
 };
 
 [Exposed=(Window,Worker), SecureContext]
@@ -1081,7 +1081,7 @@ Just IDL for now; full spec coming!
 [Exposed=(Window,Worker), SecureContext]
 interface AIRewriterFactory {
   Promise<AIRewriter> create(optional AIRewriterCreateOptions options = {});
-  Promise<AICapabilityAvailability> available(optional AIRewriterCreateCoreOptions options = {});
+  Promise<AICapabilityAvailability> availability(optional AIRewriterCreateCoreOptions options = {});
 };
 
 [Exposed=(Window,Worker), SecureContext]