diff --git a/ext/bg/background.html b/ext/bg/background.html
index 1bb36cf8..49fc6d0f 100644
--- a/ext/bg/background.html
+++ b/ext/bg/background.html
@@ -9,7 +9,7 @@
     <script src="js/ankinull.js"></script>
     <script src="js/templates.js"></script>
     <script src="js/util.js"></script>
-    <script src="js/dictionary.js"></script>
+    <script src="js/database.js"></script>
     <script src="js/deinflector.js"></script>
     <script src="js/translator.js"></script>
     <script src="js/options.js"></script>
diff --git a/ext/bg/js/dictionary.js b/ext/bg/js/database.js
similarity index 98%
rename from ext/bg/js/dictionary.js
rename to ext/bg/js/database.js
index a7bca2f1..19e3228f 100644
--- a/ext/bg/js/dictionary.js
+++ b/ext/bg/js/database.js
@@ -17,14 +17,14 @@
  */
 
 
-class Dictionary {
+class Database {
     constructor() {
         this.db = null;
         this.dbVer = 6;
         this.entities = null;
     }
 
-    initDb() {
+    init() {
         if (this.db !== null) {
             return Promise.reject('database already initialized');
         }
@@ -39,8 +39,8 @@ class Dictionary {
         });
     }
 
-    prepareDb() {
-        this.initDb();
+    prepare() {
+        this.init();
 
         return this.db.meta.get('version').then(row => {
             return row ? row.value : 0;
@@ -56,13 +56,13 @@ class Dictionary {
             this.db = null;
 
             return db.delete().then(() => {
-                this.initDb();
+                this.init();
                 return false;
             });
         });
     }
 
-    sealDb() {
+    seal() {
         if (this.db === null) {
             return Promise.reject('database not initialized');
         }
diff --git a/ext/bg/js/options-form.js b/ext/bg/js/options-form.js
index 2f2fe6fd..14143d81 100644
--- a/ext/bg/js/options-form.js
+++ b/ext/bg/js/options-form.js
@@ -166,7 +166,7 @@ function populateDictionaries(opts) {
     const container = $('.dicts');
     container.empty();
 
-    yomichan().translator.dictionary.getDictionaries().then(rows => {
+    yomichan().translator.database.getDictionaries().then(rows => {
         rows.forEach(row => {
             const dictOpts = opts.dictionaries[row.title] || {enableTerms: true, enableKanji: false};
             const html = Handlebars.templates['dictionary.html']({
@@ -184,7 +184,7 @@ function populateDictionaries(opts) {
         $('.dict-delete').click(e => {
             const dict = $(e.target).closest('.dict');
             const title = dict.data('title');
-            yomichan().translator.dictionary.deleteDictionary(title);
+            yomichan().translator.database.deleteDictionary(title);
             dict.slideUp();
         });
 
diff --git a/ext/bg/js/translator.js b/ext/bg/js/translator.js
index 0a0a6109..e65acd60 100644
--- a/ext/bg/js/translator.js
+++ b/ext/bg/js/translator.js
@@ -21,7 +21,7 @@ class Translator {
     constructor() {
         this.loaded = false;
         this.tagMeta = null;
-        this.dictionary = new Dictionary();
+        this.database = new Database();
         this.deinflector = new Deinflector();
     }
 
@@ -35,7 +35,7 @@ class Translator {
             return loadJson('bg/data/tags.json');
         }).then(tagMeta => {
             this.tagMeta = tagMeta;
-            return this.dictionary.prepareDb();
+            return this.database.prepare();
         }).then(exists => {
             if (exists) {
                 return;
@@ -62,11 +62,11 @@ class Translator {
             };
 
             return Promise.all([
-                this.dictionary.importDictionary('bg/data/edict/index.json', bankCallback),
-                this.dictionary.importDictionary('bg/data/enamdict/index.json', bankCallback),
-                this.dictionary.importDictionary('bg/data/kanjidic/index.json', bankCallback),
+                this.database.importDictionary('bg/data/edict/index.json', bankCallback),
+                this.database.importDictionary('bg/data/enamdict/index.json', bankCallback),
+                this.database.importDictionary('bg/data/kanjidic/index.json', bankCallback),
             ]).then(() => {
-                return this.dictionary.sealDb();
+                return this.database.seal();
             }).then(() => {
                 if (callback) {
                     callback({state: 'end', progress: 100.0});
@@ -84,7 +84,7 @@ class Translator {
         for (let i = text.length; i > 0; --i) {
             deinflectPromises.push(
                 this.deinflector.deinflect(text.slice(0, i), term => {
-                    return this.dictionary.findTerm(term).then(definitions => definitions.map(definition => definition.tags));
+                    return this.database.findTerm(term).then(definitions => definitions.map(definition => definition.tags));
                 }).then(deinflects => {
                     const processPromises = [];
                     for (const deinflect of deinflects) {
@@ -143,7 +143,7 @@ class Translator {
 
         for (const c of text) {
             if (!processed[c]) {
-                promises.push(this.dictionary.findKanji(c).then((definitions) => definitions));
+                promises.push(this.database.findKanji(c).then((definitions) => definitions));
                 processed[c] = true;
             }
         }
@@ -152,7 +152,7 @@ class Translator {
     }
 
     processTerm(groups, source, tags, rules, root) {
-        return this.dictionary.findTerm(root).then(definitions => {
+        return this.database.findTerm(root).then(definitions => {
             for (const definition of definitions) {
                 if (definition.id in groups) {
                     continue;