diff --git a/Tests/KanaKanjiConverterModuleWithDefaultDictionaryTests/DicdataStoreTests/DicdataStoreTests.swift b/Tests/KanaKanjiConverterModuleWithDefaultDictionaryTests/DicdataStoreTests/DicdataStoreTests.swift
index 3c897ca..3a03439 100644
--- a/Tests/KanaKanjiConverterModuleWithDefaultDictionaryTests/DicdataStoreTests/DicdataStoreTests.swift
+++ b/Tests/KanaKanjiConverterModuleWithDefaultDictionaryTests/DicdataStoreTests/DicdataStoreTests.swift
@@ -54,7 +54,78 @@ final class DicdataStoreTests: XCTestCase {
             ("フトウフクツ", "不撓不屈"),
             ("ナンタイ", "軟体"),
             ("ナンジ", "何時"),
-            ("ナド", "等")
+            ("ナド", "等"),
+            // 各50音についてチェック（辞書の破損を調べるため）
+            ("アイコウ", "愛好"),
+            ("インガ", "因果"),
+            ("ウンケイ", "運慶"),
+            ("エンセキ", "縁石"),
+            ("オンネン", "怨念"),
+            ("カイビャク", "開闢"),
+            ("ガンゼン", "眼前"),
+            ("キトク", "奇特"),
+            ("ギョウコ", "凝固"),
+            ("クウキョ", "空虚"),
+            ("グウワ", "寓話"),
+            ("ケイセイ", "形声"),
+            ("ゲントウ", "厳冬"),
+            ("コウシャク", "講釈"),
+            ("ゴリョウ", "御陵"),
+            ("サンジュツ", "算術"),
+            ("ザイアク", "罪悪"),
+            ("ショウシャ", "瀟洒"),
+            ("ジョウドウ", "情動"),
+            ("スイサイ", "水彩"),
+            ("ズイイ", "随意"),
+            ("センカイ", "旋回"),
+            ("ゼッカ", "舌禍"),
+            ("ソツイ", "訴追"),
+            ("ゾウゴ", "造語"),
+            ("タイコウ", "太閤"),
+            ("ダツリン", "脱輪"),
+            ("チンコウ", "沈降"),
+            // ("ヂ")
+            ("ツウショウ", "通商"),
+            // ("ヅ")
+            ("テンキュウ", "天球"),
+            ("デンシン", "伝心"),
+            ("トウキ", "投機"),
+            ("ドウモウ", "獰猛"),
+            ("ナイシン", "内心"),
+            ("ニンショウ", "人称"),
+            ("ヌマヅ", "沼津"),
+            ("ネンショウ", "燃焼"),
+            ("ノウリツ", "能率"),
+            ("ハクタイ", "百代"),
+            ("バクシン", "驀進"),
+            ("パク", "朴"),
+            ("ヒショウ", "飛翔"),
+            ("ビクウ", "鼻腔"),
+            ("ピーシー", "PC"),
+            ("フウガ", "風雅"),
+            ("ブンジョウ", "分譲"),
+            ("プラハノハル", "プラハの春"),
+            ("ヘンリョウ", "変量"),
+            ("ベイカ", "米価"),
+            ("ペキン", "北京"),
+            ("ホウトウ", "放蕩"),
+            ("ボウダイ", "膨大"),
+            ("ポリブクロ", "ポリ袋"),
+            ("マッタン", "末端"),
+            ("ミジン", "微塵"),
+            ("ムソウ", "夢想"),
+            ("メンツ", "面子"),
+            ("モウコウ", "猛攻"),
+            ("ヤクモノ", "約物"),
+            ("ユウタイ", "有袋"),
+            ("ヨウラン", "揺籃"),
+            ("ランショウ", "濫觴"),
+            ("リンネ", "輪廻"),
+            ("ルイジョウ", "累乗"),
+            ("レイラク", "零落"),
+            ("ロウジョウ", "楼上"),
+            ("ワクセイ", "惑星"),
+            ("ヲ", "を"),
         ]
         for (key, word) in mustWords {
             var c = ComposingText()