| Kanji 漢字 / Romaji 音韻 | Kana / Hiragana / Phonetic | Definition |
| ニルソン | (u) Nilson / Nilsson |
| niruson |
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| ニルス | (u) Niels / Nils |
| nirusu |
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| ニルストルーム | (p) Nylstroom |
| nirusutoru^mu |
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| 二流 | にりゅう | (n) second-rate / inferior |
| niryuu | niryuu |
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| 二硫化炭素 | にりゅうかたんそ | (n) carbon disulfide |
| niryuuka tanso | niryuukatanso |
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| 二流体噴射弁 | にりゅうたいふんしゃべん | twin-fluid atomizer (10) |
| niryuu karada funsha ben | niryuutaifunshaben |
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| 二佐 | にさ | (n) lieutenant colonel (JSDF) |
| ni sa | nisa |
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| 荷捌 | にさばき | (n) sale / disposal of goods |
| ka hachi | nisabaki |
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| 荷捌き | にさばき | (n) sale / disposal of goods |
| ka sabaki | nisabaki |
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| 二サイクルエンジン | にさいくるえんじん | two stroke-cycle engine (11) |
| ni saikuruenjin | nisaikuruenjin |
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| 二三 | にさん | two or three |
| nisan | nisan |
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| 二酸化イオウ | にさんかイオウ | sulfur dioxide |
| ni sanka iou | nisanka iou |
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| 二酸化ケイ素 | にさんかケイそ | (n) silicon dioxide |
| ni sanka kei moto | nisanka kei so |
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| 二酸化窒素 | にさんかちっそ | (n) nitrogen dioxide |
| nisankachisso | nisankachisso |
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| 二酸化硫黄 | にさんかいおう | (n) sulfur dioxide |
| ni sanka iou | nisankaiou |
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| 二酸化硫黄自動計測器 | にさんかいおうじどうけいそくき | continuous analyzers for sulfur dioxide (3) |
| ni sanka iou jidoukeisoku utsuwa | nisankaioujidoukeisokuki |
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| 二酸化炭素 | にさんかたんそ | carbon dioxide |
| nisankatanso | nisankatanso |
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| 二酸化炭素 | にさんかたんそ | (n) carbon dioxide |
| nisankatanso | nisankatanso |
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| 二酸化炭素排出権 | にさんかたんそはいしゅつけん | (n) right to emit carbon dioxide |
| nisankatanso haishutsu ken | nisankatansohaishutsuken |
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| 二酸化炭素削減義務 | にさんかたんそさくげんぎむ | (n) carbon-dioxide reducing obligation |
| nisankatanso sakugen gimu | nisankatansosakugengimu |
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| 二酸化炭素削減目標 | にさんかたんそさくげんもくひょう | (n) CO2-reduction goal |
| nisankatanso sakugen mokuhyou | nisankatansosakugenmokuhyou |
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| 贋 | にせ | (n) imitation / sham / bogus |
| gan | nise |
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| 偽 | にせ | imitation / lie / falsehood / (logical) false / deception |
| nise | nise |
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| 贋札 | にせふだ | (n) counterfeit paper money / forged document |
| gan satsu | nisefuda |
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| 偽札 | にせふだ | (n) counterfeit paper money / forged document |
| nisesatsu | nisefuda |
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| 贋金 | にせがね | (n) counterfeit money |
| gan kin | nisegane |
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| 偽金 | にせがね | (n) counterfeit money |
| nise kin | nisegane |
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| 二世 | にせい | (n) second generation / two existences / the present and the future / junior / the second (king of the same name) / American-born Japanese / foreigner of Japanese parentage |
| nisei | nisei |
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| 二成文系 | にせいぶんけい | binary system |
| ni seibun kei | niseibunkei |
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| 贋印 | にせいん | forged seal |
| gan in | nisein |
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| 贋首 | にせくび | (n) falsified severed head |
| gan kubi | nisekubi |
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| 偽君子 | にせくんし | (n) hypocrite / snob |
| nise kunshi | nisekunshi |
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| 贋者 | にせもの | (n) imposter / liar |
| gan mono | nisemono |
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| 贋物 | にせもの | (n) spurious article / forgery / counterfeit / imitation / sham |
| nisemono | nisemono |
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| 偽者 | にせもの | (n) imposter / liar |
| nisemono | nisemono |
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| 偽物 | にせもの | (n) spurious article / forgery / counterfeit / imitation / sham |
| nisemono | nisemono |
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| 2000年問題 | にせんねんもんだい | Y2K bug / year 2000 problem |
| 2000 nen mondai | nisennenmondai |
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| 2000年問題対策済み | にせんねんもんだいたいさくすみ | Y2K compliant |
| 2000 nen mondai taisaku sumi | nisennenmondaitaisakusumi |
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| 二世の契り | にせのちぎり | (n) marriage vows |
| nisei no chigiri | nisenochigiri |
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| 二世の固め | にせのかため | marriage vows |
| nisei no katame | nisenokatame |
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