diff --git a/assets/js/autocomplete.ts b/assets/js/autocomplete.ts
index b8b7f260..12b9c05f 100644
--- a/assets/js/autocomplete.ts
+++ b/assets/js/autocomplete.ts
@@ -15,13 +15,16 @@ import {
   TermSuggestion,
 } from './utils/suggestions';
 
-type AcEnabledInputElement = HTMLInputElement | HTMLTextAreaElement;
+type AutocompletableInputElement = HTMLInputElement | HTMLTextAreaElement;
 
-function hasAcEnabled(element: unknown): element is AcEnabledInputElement {
-  return (element instanceof HTMLInputElement || element instanceof HTMLTextAreaElement) && Boolean(element.dataset.ac);
+function hasAutocompleteEnabled(element: unknown): element is AutocompletableInputElement {
+  return (
+    (element instanceof HTMLInputElement || element instanceof HTMLTextAreaElement) &&
+    Boolean(element.dataset.autocomplete)
+  );
 }
 
-let inputField: AcEnabledInputElement | null = null;
+let inputField: AutocompletableInputElement | null = null;
 let originalTerm: string | undefined;
 let originalQuery: string | undefined;
 let selectedTerm: TermContext | null = null;
@@ -29,7 +32,7 @@ let selectedTerm: TermContext | null = null;
 const popup = new SuggestionsPopup();
 
 function isSearchField(targetInput: HTMLElement): boolean {
-  return targetInput.dataset.acMode === 'search';
+  return targetInput.dataset.autocompleteMode === 'search';
 }
 
 function restoreOriginalValue() {
@@ -117,7 +120,7 @@ function keydownHandler(event: KeyboardEvent) {
   }
 }
 
-function findSelectedTerm(targetInput: AcEnabledInputElement, searchQuery: string): TermContext | null {
+function findSelectedTerm(targetInput: AutocompletableInputElement, searchQuery: string): TermContext | null {
   if (targetInput.selectionStart === null || targetInput.selectionEnd === null) return null;
 
   const selectionIndex = Math.min(targetInput.selectionStart, targetInput.selectionEnd);
@@ -151,11 +154,15 @@ function findSelectedTerm(targetInput: AcEnabledInputElement, searchQuery: strin
 function toggleSearchNativeAutocomplete() {
   const enable = store.get('enable_search_ac');
 
-  for (const searchField of $$<AcEnabledInputElement>(':is(input, textarea)[data-ac][data-ac-mode=search]')) {
+  const searchFields = $$<AutocompletableInputElement>(
+    ':is(input, textarea)[data-autocomplete][data-autocomplete-mode=search]',
+  );
+
+  for (const searchField of searchFields) {
     if (enable) {
       searchField.autocomplete = 'off';
     } else {
-      searchField.removeAttribute('data-ac');
+      searchField.removeAttribute('data-autocomplete');
       searchField.autocomplete = 'on';
     }
   }
@@ -166,14 +173,14 @@ function trimPrefixes(targetTerm: string): string {
 }
 
 /**
- * We control the autocomplete with `data-ac*` attributes in HTML, and subscribe
+ * We control the autocomplete with `data-autocomplete*` attributes in HTML, and subscribe
  * event listeners to the `document`. This pattern is described in more detail
  * here: https://javascript.info/event-delegation
  */
 export function listenAutocomplete() {
   let serverSideSuggestionsTimeout: number | undefined;
 
-  let localAc: LocalAutocompleter | null = null;
+  let localAutocomplete: LocalAutocompleter | null = null;
 
   document.addEventListener('focusin', loadAutocompleteFromEvent);
 
@@ -182,13 +189,13 @@ export function listenAutocomplete() {
     loadAutocompleteFromEvent(event);
     window.clearTimeout(serverSideSuggestionsTimeout);
 
-    if (!hasAcEnabled(event.target)) return;
+    if (!hasAutocompleteEnabled(event.target)) return;
 
     const targetedInput = event.target;
 
     targetedInput.addEventListener('keydown', keydownHandler as EventListener);
 
-    if (localAc !== null) {
+    if (localAutocomplete !== null) {
       inputField = targetedInput;
       let suggestionsCount = 5;
 
@@ -207,7 +214,7 @@ export function listenAutocomplete() {
         originalTerm = inputField.value.toLowerCase();
       }
 
-      const suggestions = localAc
+      const suggestions = localAutocomplete
         .matchPrefix(trimPrefixes(originalTerm), suggestionsCount)
         .map(formatLocalAutocompleteResult);
 
@@ -247,16 +254,16 @@ export function listenAutocomplete() {
     }
   });
 
-  // Lazy-load the local AC index from the server only once.
-  let localAcFetchInitiated = false;
+  // Lazy-load the local autocomplete index from the server only once.
+  let localAutocompleteFetchNeeded = true;
 
   async function loadAutocompleteFromEvent(event: Event) {
-    if (!hasAcEnabled(event.target) || localAcFetchInitiated) {
+    if (!localAutocompleteFetchNeeded || !hasAutocompleteEnabled(event.target)) {
       return;
     }
 
-    localAcFetchInitiated = true;
-    localAc = await fetchLocalAutocomplete();
+    localAutocompleteFetchNeeded = false;
+    localAutocomplete = await fetchLocalAutocomplete();
   }
 
   toggleSearchNativeAutocomplete();
diff --git a/assets/js/utils/__tests__/local-autocompleter.spec.ts b/assets/js/utils/__tests__/local-autocompleter.spec.ts
index 4dc4ec03..8ff5c01c 100644
--- a/assets/js/utils/__tests__/local-autocompleter.spec.ts
+++ b/assets/js/utils/__tests__/local-autocompleter.spec.ts
@@ -47,10 +47,10 @@ describe('Local Autocompleter', () => {
   describe('topK', () => {
     const termStem = ['f', 'o'].join('');
 
-    let localAc: LocalAutocompleter;
+    let localAutocomplete: LocalAutocompleter;
 
     beforeAll(() => {
-      localAc = new LocalAutocompleter(mockData);
+      localAutocomplete = new LocalAutocompleter(mockData);
     });
 
     beforeEach(() => {
@@ -58,17 +58,17 @@ describe('Local Autocompleter', () => {
     });
 
     it('should return suggestions for exact tag name match', () => {
-      const result = localAc.matchPrefix('safe', defaultK);
+      const result = localAutocomplete.matchPrefix('safe', defaultK);
       expect(result).toEqual([expect.objectContaining({ aliasName: 'safe', name: 'safe', imageCount: 6 })]);
     });
 
     it('should return suggestion for original tag when passed an alias', () => {
-      const result = localAc.matchPrefix('flowers', defaultK);
+      const result = localAutocomplete.matchPrefix('flowers', defaultK);
       expect(result).toEqual([expect.objectContaining({ aliasName: 'flowers', name: 'flower', imageCount: 1 })]);
     });
 
     it('should return suggestions sorted by image count', () => {
-      const result = localAc.matchPrefix(termStem, defaultK);
+      const result = localAutocomplete.matchPrefix(termStem, defaultK);
       expect(result).toEqual([
         expect.objectContaining({ aliasName: 'forest', name: 'forest', imageCount: 3 }),
         expect.objectContaining({ aliasName: 'fog', name: 'fog', imageCount: 1 }),
@@ -77,25 +77,25 @@ describe('Local Autocompleter', () => {
     });
 
     it('should return namespaced suggestions without including namespace', () => {
-      const result = localAc.matchPrefix('test', defaultK);
+      const result = localAutocomplete.matchPrefix('test', defaultK);
       expect(result).toEqual([
         expect.objectContaining({ aliasName: 'artist:test', name: 'artist:test', imageCount: 1 }),
       ]);
     });
 
     it('should return only the required number of suggestions', () => {
-      const result = localAc.matchPrefix(termStem, 1);
+      const result = localAutocomplete.matchPrefix(termStem, 1);
       expect(result).toEqual([expect.objectContaining({ aliasName: 'forest', name: 'forest', imageCount: 3 })]);
     });
 
     it('should NOT return suggestions associated with hidden tags', () => {
       window.booru.hiddenTagList = [1];
-      const result = localAc.matchPrefix(termStem, defaultK);
+      const result = localAutocomplete.matchPrefix(termStem, defaultK);
       expect(result).toEqual([]);
     });
 
     it('should return empty array for empty prefix', () => {
-      const result = localAc.matchPrefix('', defaultK);
+      const result = localAutocomplete.matchPrefix('', defaultK);
       expect(result).toEqual([]);
     });
   });
diff --git a/lib/philomena_web/templates/filter/_form.html.slime b/lib/philomena_web/templates/filter/_form.html.slime
index 2482f71f..95eca5dd 100644
--- a/lib/philomena_web/templates/filter/_form.html.slime
+++ b/lib/philomena_web/templates/filter/_form.html.slime
@@ -26,7 +26,7 @@
     .field
       = label f, :spoilered_complex_str, "Complex Spoiler Filter"
       br
-      = textarea f, :spoilered_complex_str, class: "input input--wide",  autocapitalize: "none", data: [ac: "true", ac_min_length: 3, ac_mode: "search"]
+      = textarea f, :spoilered_complex_str, class: "input input--wide", autocapitalize: "none", data: [autocomplete: "true", autocomplete_min_length: 3, autocomplete_mode: "search"]
       br
       = error_tag f, :spoilered_complex_str
     .fieldlabel
@@ -51,7 +51,7 @@
     .field
       = label f, :hidden_complex_str, "Complex Hide Filter"
       br
-      = textarea f, :hidden_complex_str, class: "input input--wide",  autocapitalize: "none", data: [ac: "true", ac_min_length: 3, ac_mode: "search"]
+      = textarea f, :hidden_complex_str, class: "input input--wide",  autocapitalize: "none", data: [autocomplete: "true", autocomplete_min_length: 3, autocomplete_mode: "search"]
       br
       = error_tag f, :hidden_complex_str
     .fieldlabel
diff --git a/lib/philomena_web/templates/layout/_header.html.slime b/lib/philomena_web/templates/layout/_header.html.slime
index 9d6ef883..b839e6b8 100644
--- a/lib/philomena_web/templates/layout/_header.html.slime
+++ b/lib/philomena_web/templates/layout/_header.html.slime
@@ -10,6 +10,7 @@ header.header
           ' Derpibooru
       a.header__link.hide-mobile href="/images/new" title="Upload"
         i.fa.fa-upload
+
     = form_for @conn, ~p"/search", [method: "get", class: "header__search flex flex--no-wrap flex--centered", enforce_utf8: false], fn f ->
       - title = \
         "For terms all required, separate with ',' or 'AND'; also supports 'OR' " <> \
@@ -22,9 +23,9 @@ header.header
         value=@conn.params["q"]
         placeholder="Search"
         autocapitalize="none"
-        data-ac="true"
-        data-ac-min-length="3"
-        data-ac-mode="search"
+        data-autocomplete="true"
+        data-autocomplete-min-length="3"
+        data-autocomplete-mode="search"
       ]
 
       = if present?(@conn.params["sf"]) do
diff --git a/lib/philomena_web/templates/profile/artist_link/_form.html.slime b/lib/philomena_web/templates/profile/artist_link/_form.html.slime
index cfe75981..00ea7cd7 100644
--- a/lib/philomena_web/templates/profile/artist_link/_form.html.slime
+++ b/lib/philomena_web/templates/profile/artist_link/_form.html.slime
@@ -7,10 +7,10 @@
     .field
       p
         label for="tag_name"
-          ' Artist Link validation is intended for artists. Validating your link will give you control over your content on the site, allowing you to create a 
+          ' Artist Link validation is intended for artists. Validating your link will give you control over your content on the site, allowing you to create a
           a> href="/commissions" commissions
           ' listing and request takedowns or DNPs. Do not request a link if the source contains no artwork which you have created.
-      = text_input f, :tag_name, value: assigns[:tag_name], class: "input", autocomplete: "off", placeholder: "artist:your-name", data: [ac: "true", ac_min_length: "3", ac_source: "/autocomplete/tags?term="]
+      = text_input f, :tag_name, value: assigns[:tag_name], class: "input", autocomplete: "off", placeholder: "artist:your-name", data: [autocomplete: "true", autocomplete_min_length: "3", autocomplete_source: "/autocomplete/tags?term="]
       = error_tag f, :tag
 
   .field
diff --git a/lib/philomena_web/templates/search/_form.html.slime b/lib/philomena_web/templates/search/_form.html.slime
index 7d0f080a..adb789bf 100644
--- a/lib/philomena_web/templates/search/_form.html.slime
+++ b/lib/philomena_web/templates/search/_form.html.slime
@@ -1,7 +1,7 @@
 h1 Search
 
 = form_for :search, ~p"/search", [id: "searchform", method: "get", class: "js-search-form", enforce_utf8: false], fn f ->
-  = text_input f, :q, class: "input input--wide js-search-field", placeholder: "Search terms are chained with commas", autocapitalize: "none", name: "q", value: @conn.params["q"], data: [ac: "true", ac_min_length: 3, ac_mode: "search"]
+  = text_input f, :q, class: "input input--wide js-search-field", placeholder: "Search terms are chained with commas", autocapitalize: "none", name: "q", value: @conn.params["q"], data: [autocomplete: "true", autocomplete_min_length: 3, autocomplete_mode: "search"]
 
   .block
     .block__header.flex
diff --git a/lib/philomena_web/templates/tag/_tag_editor.html.slime b/lib/philomena_web/templates/tag/_tag_editor.html.slime
index d645fd43..821ff12d 100644
--- a/lib/philomena_web/templates/tag/_tag_editor.html.slime
+++ b/lib/philomena_web/templates/tag/_tag_editor.html.slime
@@ -16,9 +16,9 @@ elixir:
       placeholder="add a tag"
       autocomplete="off"
       autocapitalize="none"
-      data-ac="true"
-      data-ac-min-length="3"
-      data-ac-source="/autocomplete/tags?term="
+      data-autocomplete="true"
+      data-autocomplete-min-length="3"
+      data-autocomplete-source="/autocomplete/tags?term="
     ]
 button.button.button--state-primary.button--bold[
   class="js-taginput-show"