| Kanji 漢字 / Romaji 音韻 | Kana / Hiragana / Phonetic | Definition |
| ヤコバ | (p) Yakoba |
| yakoba |
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| ヤコビ | (n) Jacobi |
| yakobi |
| |
| ヤコビ | (u) Jakoby |
| yakobi |
| |
| ヤコビアン | やこびあん | Jacobian (14) |
| yakobian | yakobian |
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| ヤコビ行列 | やこびぎょうれつ | Jacobian matrix (14) |
| yakobi gyouretsu | yakobigyouretsu |
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| ヤコビイ | (u) Jacoby |
| yakobii |
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| ヤコビーニ | (u) Jacobini |
| yakobi^ni |
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| ヤコブレフ | (u) Yakovlev |
| yakoburefu |
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| ヤコブセン | (u) Jacobsen |
| yakobusen |
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| ヤコブソン | (u) Jacobson / Jacobsson / Yakobson |
| yakobuson |
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| ヤコブスタード | (p) Jakobstad |
| yakobusuta^do |
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| ヤコフ | (u) Yakov |
| yakofu |
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| ヤコペッティ | (u) Jacopetti |
| yakopettei |
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| ヤコプソン | (u) Jakobson |
| yakopuson |
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| ヤコプス | (u) Jacobs |
| yakopusu |
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| 冶工 | やこう | metallurgical worker |
| ya kou | yakou |
| |
| 夜光 | やこう | (n) nocturnal luminescence |
| yakou | yakou |
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| 夜行 | やこう | (n) walking around at night / night train / night travel |
| yakou | yakou |
| |
| 夜光虫 | やこうちゅう | (n) phosphorescent animalcule |
| yakouchuu | yakouchuu |
| |
| 夜光時計 | やこうどけい | luminous watch |
| yakou tokei | yakoudokei |
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| 夜行性 | やこうせい | (n) nocturnal habit |
| yakousei | yakousei |
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| 夜光塗料 | やこうとりょう | luminous paint |
| yakou toryou | yakoutoryou |
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| ヤコービ | (u) Jacobi |
| yako^bi |
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| 燒く | やく | burn; roast, broil, bake |
| yaku | yaku |
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| 焼く | やく | burn; roast, broil, bake |
| yaku | yaku |
| |
| 益 | やく | gain / benefit / profit / use / advantage / being beneficial (useful, profitable, valuable) |
| masu | yaku |
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| 焼く | やく | (v5k) to bake / to grill |
| yaku | yaku |
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| 妬く | やく | (v5k) to be jealous of / to be envious of |
| yaku | yaku |
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| 厄 | やく | (n) misfortune / bad luck / evil / disaster |
| yaku | yaku |
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| 役 | やく | use / service / role / position |
| yaku | yaku |
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| 約 | やく | approximately / about / some |
| yaku | yaku |
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| 役場 | やくば | public offices |
| yakuba | yakuba |
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| 役場 | やくば | (n) town hall |
| yakuba | yakuba |
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| 厄払い | やくばらい | (n) exorcism / good riddance |
| yakubarai | yakubarai |
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| 厄日 | やくび | (n) unlucky day / evil day |
| yakubi | yakubi |
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| ヤクボフスキー | (u) Yakubovskii |
| yakubofusuki^ |
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| ヤクボウスカ | (u) Jakubowska |
| yakubousuka |
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| ヤクボービチ | (u) Yakubovich |
| yakubo^bichi |
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| ヤクブカーン | (u) Yakub Khan |
| yakubuka^n |
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| 約分 | やくぶん | reduce a fraction to its lowest terms |
| yakubun | yakubun |
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