一旦

Chinese

		one; single; a one; single; a; (before verbs) as soon as, once; (before a noun) entire (family, etc.)	dawn; morning; day-break dawn; morning; day-break; day
simp. and trad. (一旦)		一	旦

Pronunciation

Mandarin
(Pinyin): yīdàn

(Zhuyin): ㄧㄉㄢˋ
Cantonese (Jyutping): jat¹ daan³ / jat¹ daan⁶
Hakka (Sixian, PFS): yit-tán
Southern Min
(Hokkien, POJ): it-tàn

(Teochew, Peng'im): zêg⁸ dang³

Mandarin
- (Standard Chinese)⁺
  - Hanyu Pinyin: yīdàn [Phonetic: yídàn]
  - Zhuyin: ㄧㄉㄢˋ
  - Tongyong Pinyin: yidàn
  - Wade–Giles: i¹-tan⁴
  - Yale: yī-dàn
  - Gwoyeu Romatzyh: idann
  - Palladius: идань (idanʹ)
  - Sinological IPA ^(key): /i⁵⁵⁻³⁵ tän⁵¹/
Cantonese
- (Standard Cantonese, Guangzhou–Hong Kong)⁺
  - Jyutping: jat¹ daan³ / jat¹ daan⁶
  - Yale: yāt daan / yāt daahn
  - Cantonese Pinyin: jat⁷ daan³ / jat⁷ daan⁶
  - Guangdong Romanization: yed¹ dan³ / yed¹ dan⁶
  - Sinological IPA ^(key): /jɐt̚⁵ taːn³³/, /jɐt̚⁵ taːn²²/

Note: jat1 daan6 - variant pronunciation for "once, as soon as".

Hakka
- (Northern Sixian, incl. Miaoli)
  - Pha̍k-fa-sṳ: yit-tán
  - Hakka Romanization System: id^ˋ dan^ˋ
  - Hagfa Pinyim: yid⁵ dan³
  - Sinological IPA: /it̚² tan³¹/
- (Southern Sixian, incl. Neipu)
  - Pha̍k-fa-sṳ: yit-tán
  - Hakka Romanization System: (r)id^ˋ dan^ˋ
  - Hagfa Pinyim: yid⁵ dan³
  - Sinological IPA: /(j)it̚² tan³¹/
Southern Min
- (Hokkien)
  - Pe̍h-ōe-jī: it-tàn
  - Tâi-lô: it-tàn
  - Phofsit Daibuun: itdaxn
  - Sinological IPA (Xiamen): /it̚³²⁻⁴ tan²¹/
  - Sinological IPA (Quanzhou): /it̚⁵⁻²⁴ tan⁴¹/
  - Sinological IPA (Zhangzhou): /it̚³²⁻⁵ tan²¹/
  - Sinological IPA (Taipei): /it̚³²⁻⁴ tan¹¹/
  - Sinological IPA (Kaohsiung): /it̚³²⁻⁴ tan²¹/
- (Teochew)
  - Peng'im: zêg⁸ dang³
  - Pe̍h-ōe-jī-like: tse̍k tàng
  - Sinological IPA ^(key): /t͡sek̚⁴⁻² taŋ²¹³/

Adverb

一旦

once; as soon as

Synonyms

一……就…… (yī...jiù...)

Noun

一旦

(literary) one day (all of a sudden); single day

Synonyms

(literary, or dialectal) 一日 (yīrì)
一天 (yītiān)

Derived terms

一旦無常萬事休 / 一旦无常万事休
毀於一旦 / 毁于一旦 (huǐyúyīdàn)

Japanese

Kanji in this term
一	旦
いち > いっ Grade: 1	たん Grade: S
on'yomi

Pronunciation

(Tokyo) いったん [ìttáń] (Heiban – [0])^[1]^[2]^[3]
IPA^(key): [it̚tã̠ɴ]

Adverb

一(いっ)旦(たん) • (ittan)

once
temporarily
(in a conditional phrase) once; used to suggest that if a condition were to be met, it would be difficult to return to the original state
- 1914, 夏目漱石 [Natsume Sōseki], chapter 36, in こゝろ [Kokoro], 下先生と遺書 [Sensei's Testament]:
  一旦(いったん)声(こえ)が口(くち)を破(やぶ)って出(で)るとなると、その声(こえ)には普通(ふつう)の人(ひと)よりも倍(ばい)の強(つよ)い力(ちから)がありました。
  Ittan koe ga kuchi o yabutte deru to naru to, sono koe ni wa futsū no hito yori mo bai no tsuyoi chikara ga arimashita.
  And once his voice broke free from his mouth, that voice would have twice the strength of that of a normal person.

Noun

一(いっ)旦(たん) • (ittan)

one time

References

^ Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN
^ NHK Broadcasting Culture Research Institute, editor (1998), NHK日本語発音アクセント辞典 [NHK Japanese Pronunciation Accent Dictionary] (in Japanese), Tokyo: NHK Publishing, Inc., →ISBN
^ Kindaichi, Kyōsuke et al., editors (1997), 新明解国語辞典 [Shin Meikai Kokugo Jiten] (in Japanese), Fifth edition, Tokyo: Sanseidō, →ISBN

“一旦”, in 漢字ぺディア [Kanjipedia]‎^[1] (in Japanese), The Japan Kanji Aptitude Testing Foundation, 2015–2026

Korean

Hanja in this term
一	旦

Adverb

一旦 • (ildan) (hangeul 일단)

hanja form^? of 일단 (“once; for the moment”)