二

Old Japanese language
Proto-Japonic language

Originally /huta/: *[puta] > [ɸuta]. The ablaut form of 一 (hito2, “one”), which it doubles.
From Old Japanese, from Proto-Japonic *puta. Cognate with Japanese 双(ふた) (futa).


二塁手

二塁(にるい) (nirui, “second base”) + 手(しゅ) (-shu, “-man; -woman; -er”).

ja-compound

(baseball, softball) a second baseperson; a second baseman; a second basewoman


セカンド

(baseball, softball) Synonym of 二塁 (nirui, “second base”)

(baseball, softball) Synonym of 二塁手 (niruishu, “second baseperson”)


二酸化炭素

ja-noun

二(に)酸(さん)化(か)炭(たん)素(そ) • (nisanka tanso) ^(←にさんくわたんそ (nisankwatanso)?)

二酸化炭素 (canonical)
nisanka tanso (romanization)
nisankwatanso (romanization)
にさんくわたんそ (hiragana historical)

→ Korean: 이산화탄소 (isanhwatanso)

→ Min Nan: 二酸化炭素 (jī-sng-hòa thòaⁿ-sò͘)

[ɲ̟isã̠ŋka̠ tã̠ɰ̃so̞]

From 二 (ni-, “di-”) + 酸化 (sanka, “oxidation”) + 炭素 (tanso, “carbon”).

af

一酸化炭素

一酸化炭素 いっさんかたんそ


二世

二世 (canonical)
nise (romanization)
にせい (alternative hiragana)
nisei (Rōmaji alternative hiragana)

→ English: nisei

→ Portuguese: nisei, nissei

two existences, the present and the future

the secondary relationship between spouses, in contrast with 一世 (isse, primary relationship between parents and children) and 三世 (sanze, tertiary relationship between master and servant)


二輪

May be from Middle Chinese 二輪 (MC nyijH lwin).
Alternatively, may have been coined in Japan of Middle Chinese-derived elements, as a compound of 二 (ni, “two”) + 輪 (rin, “wheel; ring”).

日月の二輪

the two circles / rings / roundnesses of the sun and the moon

二輪咲きの百合

two-circle-blooming lilies → twin-blooming lilies


二宮

the 中宮 (Chūgū, “Empress Consort's Palace at the center”) and 東宮 (Tōgū, “Crown Prince's Palace to the east”)


二宮

A town in Haga district, Tochigi Prefecture, Japan, Asia

A town in Naka district, Kanagawa Prefecture, Japan, Asia


二頭筋

[ɲ̟ito̞ːkʲĩɴ]

二頭 (“two heads”) + 筋 (“muscle”), calque of New Latin mūsculus biceps


二の舞い

二の舞い (canonical)
ni no mai (romanization)

a repeat of someone else's failure or bad experience; a second ..., another ...


上腕二頭筋

ja-noun

上(じょう)腕(わん)二(に)頭(とう)筋(きん) • (jōwan nitōkin) ^(←ぢゃうわんにとうきん (dyauwan nitoukin)?)

上腕二頭筋 (canonical)
jōwan nitōkin (romanization)
dyauwan nitoukin (romanization)
ぢゃうわんにとうきん (hiragana historical)

[d͡ʑo̞ːβ̞a̠ɲ̟ ɲ̟ito̞ːkʲĩɴ]

上腕 (“upper arm”) + 二頭筋 (“biceps muscle”), calque of New Latin mūsculus biceps brāchiī

cal

Coordinate term: 上腕三頭筋 (jōwan santōkin)


デュース

ja-noun

デュース • (dyūsu)

Borrowed from English deuce. See also エース (ēsu, “ace”), トレイ (torei, “trey”), ケイト (keito, “cater”), シンク (shinku, “cinque”) and サイス (saisu, “sice”).

(tennis, table tennis, volleyball, etc.) a deuce


二瘤駱駝

二(ふた)瘤(こぶ)駱(らく)駝(だ) or 二瘤駱駝(フタコブラクダ) • (futakobu rakuda)

二瘤駱駝 (canonical)
二瘤駱駝 (canonical)
futakobu rakuda (romanization)

二 (futa, “two”) + 瘤 (kobu, “lump”) + 駱駝 (rakuda, “camel”)

af

駱駝

一瘤駱駝 (hitokobu rakuda; ), 二瘤駱駝 (futakobu rakuda, )


双曲線

ja-noun

双(そう)曲(きょく)線(せん) • (sōkyokusen) ^(←さうきよくせん (saukyokusen)?)

双曲線 (canonical)
sōkyokusen (romanization)
saukyokusen (romanization)
さうきよくせん (hiragana historical)

[so̞ːkʲo̞kɯ̟̊sẽ̞ɴ]

From 双 (sō-, “bi-; di-”) + 曲線 (kyokusen, “curve”).


二次元

二次元の平面


両極

ja-noun

両(りょう)極(きょく) • (ryōkyoku) ^(←りやうきよく (ryaukyoku)?)

両極 (canonical)
ryōkyoku (romanization)
ryaukyoku (romanization)
りやうきよく (hiragana historical)

[ɾʲo̞ːkʲo̞kɯ̟]


二輪草

二(に)輪(りん)草(そう) or 二輪草(ニリンソウ) • (nirinsō) ^(←にりんさう (nirinsau) or ニリンサウ (nirinsau)?)

二輪草 (canonical)
二輪草 (canonical)
nirinsō (romanization)
nirinsau (romanization)
にりんさう (hiragana historical)
ニリンサウ (hiragana historical)

[ɲ̟iɾʲĩɰ̃so̞ː]

a flaccid anemone (species of plant having typically two flowers from each stem), Anemone flaccida


デューテリウム

[dʲɨːte̞ɾʲiɯ̟mɯ̟]

Synonym of 重水素 (jūsuiso, “heavy hydrogen”); deuterium


両院制

両(りょう)院(いん)制(せい) • (ryōinsei) ^(←りやうゐんせい (ryauwinsei)?)

両院制 (canonical)
ryōinsei (romanization)
ryauwinsei (romanization)
りやうゐんせい (hiragana historical)

[ɾʲo̞ːĩɰ̃se̞ː]

From 両院 (ryōin, “two chambers”) + 制 (-sei, “-cracy; -archy”).

suf

bicameralism (principle of dividing legislative body into two groups)


二院制

ja-noun

二(に)院(いん)制(せい) • (niinsei) ^(←にゐんせい (niwinsei)?)

二院制 (canonical)
niinsei (romanization)
niwinsei (romanization)
にゐんせい (hiragana historical)

[ɲ̟iĩɰ̃se̞ː]

From 二院 (niin, “two chambers”) + 制 (-sei, “system”).

suf

Synonym of 両院制 (ryōinsei, “bicameralism”) (principle of dividing legislative body into two groups)


バイアスロン

[ba̠ia̠sɨɾõ̞ɴ]


一酸化二窒素

ja-noun

一(いっ)酸(さん)化(か)二(に)窒(ちっ)素(そ) • (issanka nichisso) ^(←いつさんくわにちつそ (itusankwanitituso)?)

一酸化二窒素 (canonical)
issanka nichisso (romanization)
itusankwanitituso (romanization)
いつさんくわにちつそ (hiragana historical)

[isːã̠ŋka̠ ɲ̟it͡ɕisːo̞]

From 一 (itsu-, “mono-”) + 酸化 (sanka, “oxidation”) + 二 (ni-, “di-”) + 窒素 (chisso, “nitrogen”).

af

亜酸化窒素 亜酸化窒素#Japanese

Synonym of 亜酸化窒素 (asanka chisso, “nitrous oxide”); dinitrogen monoxide


二次方程式

ja-noun

二(に)次(じ)方(ほう)程(てい)式(しき) • (niji hōteishiki) ^(←にじはうていしき (nizi fauteisiki)?)

二次方程式 (canonical)
niji hōteishiki (romanization)
nizi fauteisiki (romanization)
にじはうていしき (hiragana historical)

二(に)次(じ) (niji, “second-degree”) + 方(ほう)程(てい)式(しき) (hōteishiki, “equation”).


二女

Compound of 二 (“two”) + 女 (“woman; female”).


一姫二太郎

ja-pos

一(いち)姫(ひめ)二(に)太(た)郎(ろう) • (ichi hime ni tarō) ^(←いちひめにたらう (iti fime ni tarau)?)

一姫二太郎 (canonical)
ichi hime ni tarō (romanization)
iti fime ni tarau (romanization)
いちひめにたらう (hiragana historical)

[ɲ̟i ta̠ɾo̞ː]

一 (ichi, “first”) + 姫 (hime, “girl; lady”) + 二 (ni, “second”) + 太郎 (tarō, generic male name; generic name for the eldest son)

af

it'd be auspicious to have a daughter first, then a son


二戸

A district of Iwate Prefecture, Japan, Asia


大腿二頭筋

ja-noun

大(だい)腿(たい)二(に)頭(とう)筋(きん) • (daitai nitōkin)

大腿二頭筋 (canonical)
daitai nitōkin (romanization)

大腿 (“thigh”) + 二頭筋 (“biceps muscle”), calque of New Latin mūsculus biceps femoris

cal

Coordinate term: 大腿四頭筋 (daitai shitōkin)


顎二腹筋

顎二腹筋 (canonical)
gakunifukukin (romanization)

顎 (“jaw”) + 二 (“di-”) + 腹 (“belly”) + 筋 (“muscle”), calque of New Latin mūsculus digastricus


双子筋

双子 (“twins”) + 筋 (“muscle”), calque of New Latin mūsculus gemellus


下双子筋

下双子筋 (canonical)
kasōshikin (romanization)

下 (“lower”) + 双子筋 (“gemellus muscle”), calque of New Latin mūsculus gemellus īnferior


上双子筋

上双子筋 (canonical)
jōsōshikin (romanization)

上 (“upper”) + 双子筋 (“gemellus muscle”), calque of New Latin mūsculus gemellus superior


二等兵

二等 (“second level”) + 兵 (“servicemember”)

suf

private second class
private second class#English

(military) a private second class (enlisted rank below first-class private the Imperial Japanese Army)


二官

二官 (canonical)
Nikan (romanization)
Nikwan (romanization)
にくゎん (hiragana historical)

二 (“two”) + 官 (“agency higher than 省 (shō, “ministry”)”)

af

agency higher than <i class="Jpan mention" lang="ja">省</i> (shō, “ministry”)

Coordinate term: 八省 (Hasshō, “Eight Ministries”)

(historical, government) the Two Departments, the 太政官 (Dajōkan, “Department of State”) and 神祇官 (Jingikan, “Department of Divinities”)