| Kanji 漢字 / Romaji 音韻 | Kana / Hiragana / Phonetic | Definition |
| 件の一件 | くだんのいっけん | the matter in question / the aforesaid matter |
| ken no ikken | kudannoikken |
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| 百済 | くだら | ancient Korean kingdom (Paekche or Kudara) |
| kudara | kudara |
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| 百済楽 | くだらがく | (n) music in the Korean court |
| kudara raku | kudaragaku |
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| 百済河成 | くだらかわなり | Kudara Kawanari (h) |
| kudara kawa sei | kudarakawanari |
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| 百済敬福 | くだらけいふく | Kudara Keifuku (h) |
| kudara takashi fuku | kudarakeifuku |
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| 下らない | くだらない | (adj) good-for-nothing / stupid / trivial / worthless |
| kudara nai | kudaranai |
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| 百済酒君 | くだらさけのきみ | Kudara Sake no kimi (h) |
| kudara sake kun | kudarasakenokimi |
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| 下り | くだり | down-train (going away from Tokyo) |
| kudari | kudari |
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| 下りリンク | くだりリンク | reverse link |
| kudari rinku | kudari rinku |
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| 下り腹 | くだりばら | (n) loose bowels / diarrhea |
| kudari hara | kudaribara |
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| 下腹 | くだりばら | (n) diarrhoea |
| kafuku | kudaribara |
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| 下り便 | くだりびん | down train / outbound train |
| kudari bin | kudaribin |
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| 下り伝送速度 | くだりでんそうそくど | (n) downstream transmission speed |
| kudari densousokudo | kudaridensousokudo |
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| 下り | くだりこうばい | Declivity |
| kudari | kudarikoubai |
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| 下り勾配 | くだりこうばい | Declivity |
| kudari koubai | kudarikoubai |
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| 下り列車 | くだりれっしゃ | trains going away from the capital / down train |
| kudari ressha | kudariressha |
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| 下り線 | くだりせん | down line (away from Tokyo) |
| kudari sen | kudarisen |
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| 下り坂 | くだりざか | (n) descent / downhill / decline / waning |
| kudarizaka | kudarizaka |
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| 下る | くだる | (v5r) to get down / to descend |
| kudaru | kudaru |
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| 降る | くだる | (v5r) to get down / to descend |
| furu | kudaru |
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| 下さい | ください | please (kana only) / (with te-form verb) please do for me |
| kudasai | kudasai |
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| 管珊瑚 | くださんご | (n) organ-pipe coral |
| kan sango | kudasango |
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| 下さる | くださる | (v5aru) (hon) to give / to confer |
| kudasa ru | kudasaru |
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| 下し | くだし | (n) evacuation / purgation |
| kudashi | kudashi |
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| 下し薬 | くだしぐすり | (n) laxative |
| kudashi kusuri | kudashigusuri |
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| 下す | くだす | (v5s) to lower / to let go down |
| kudasu | kudasu |
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| クダト | (p) Kudat (Malaysia) |
| kudato |
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| 管継手 | くだつぎて | pipe joint (16) / pipe fitting (16) / pipe coupling (16) |
| kan kei te | kudatsugite |
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| 管継手 | くだつぎて | (n) pipe joint |
| kan kei te | kudatsugite |
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| 管を巻く | くだをまく | (exp) to grumble over one's wine cups |
| kan wo maku | kudawomaku |
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| 管寄せ | くだよせ | header (12) |
| kan yose | kudayose |
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| 管用ねじ | くだようねじ | pipe thread (16) |
| kan you neji | kudayouneji |
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| クディラ | (u) Kurdyla |
| kudeira |
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| クディリ | (p) Kediri (Indonesia) |
| kudeiri |
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| クディルカ | (u) Kudirka |
| kudeiruka |
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| 公田 | くでん | (n) (historical) paddy administered directly by a ruler |
| kou ta | kuden |
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| 口伝 | くでん | (n) oral tradition / tradition / oral instruction |
| kuden | kuden |
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| 久地楽 | くぢら | Kudzira (s) |
| kyuu chi raku | kudira |
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| 苦土 | くど | (n) this painful world / magnesia |
| ku tsuchi | kudo |
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| 諄い | くどい | (adj) (uk) verbose / importunate / heavy (taste) |
| jun i | kudoi |
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