一

• ㆒ (U+3192) (Annotation mark for Japanese kanbun)
• 〡 (Suzhou numeral for one)
• ㈠, ㊀

Stroke order

一 (Kangxi radical 1, 一+0, 1 stroke, cangjie input 一 (M), four-corner 1000₀)

1. Kangxi radical #1, ⼀.
2. Shuowen Jiezi radical №1

• Appendix:Chinese_radical/一
• 𬂜, 𤰓, 𫢅, 𬏚, 𤕬, 𫜢, 㝉, 弌, 𬏚, 閂(闩)

• 壹 (Financial form of 一)
• 壱 (Japanese shinjitai of 壹)
• 弌 (Ancient form of 一)

• ㄧ (Zhuyin letter)

• KangXi: page 75, character 1
• Dai Kanwa Jiten: character 1
• Dae Jaweon: page 129, character 1
• Hanyu Da Zidian (first edition): volume 1, page 1, character 1
• Unihan data for U+4E00

Wikisource

• 一 on Wikidata.Wikidata

Historical forms of the character 一
Shang		Western Zhou		Spring and Autumn	Warring States			Shuowen Jiezi (compiled in Han)		Hanjian (compiled in Song)	Guwen Sishengyun (compiled in Song)	Jizhuan Guwen Yunhai (compiled in Song)	Liushutong (compiled in Ming)	Libian (compiled in Qing)	Tang Stone Classics	Kangxi Dictionary (compiled in Qing)
Bronze inscriptions	Oracle bone script	Bronze inscriptions	Oracle bone script	Bronze inscriptions	Bronze inscriptions	Chu slip and silk script	Qin slip script	Ancient script	Small seal script	Transcribed ancient scripts	Transcribed ancient scripts	Transcribed ancient scripts	Transcribed ancient scripts	Clerical script	Regular script	Ming typeface
Oracle bone script j00001 j00002 Bronze inscriptions B00001 B00002 B00003 B00004 B00005 B00006 B00007 B00008 B00009 B00010 B00011 B00012 B00013 B00014 B00015 Small seal script s00001 Transcribed ancient scripts L25931 L25932 L25933 L25934
References: Mostly from Richard Sears' Chinese Etymology site (authorisation), which in turn draws data from various collections of ancient forms of Chinese characters, including: Shuowen Jiezi (small seal), Jinwen Bian (bronze inscriptions), Liushutong (Liushutong characters) and Yinxu Jiaguwen Bian (oracle bone script).

Ideogram (指事) : a horizontal stroke, indicating the number “one”.

From Proto-Sino-Tibetan *ʔit. Descendants from the *ʔit etymon account for the majority of the dialectal forms for “one” in Chinese (Mandarin, Jin, Gan, Hakka, Hui, Xiang, Yue, Wu groups, etc.).

一

1. one

   一長一短／一长一短  ―  yī cháng yī duǎn  ―  one short and one long

   一死一傷／一死一伤  ―  yī sǐ yī shāng  ―  one dead, one injured

   一高一低  ―  yī gāo yī dī  ―  one high and one low

   一天一夜  ―  yī tiān yī yè  ―  one day and one night

   一日一夜 [Cantonese]  ―  jat¹ jat⁶ jat¹ je⁶ [Jyutping]  ―  one day and one night

   一左一右  ―  yī zuǒ yī yòu  ―  one left, one right

2. each; every

   給他們一人一顆蘋果。 [MSC, trad.]
   给他们一人一颗苹果。 [MSC, simp.]

   Gěi tā men yī rén yī kē píngguǒ. [Pinyin]

   Give them an apple each.

3. single; alone

   獨自一人／独自一人  ―  dúzì yī rén  ―  a solitary person, one person

   專一／专一  ―  zhuānyī  ―  single-minded, monogamous

4. whole; entire; all: throughout

   他們在海灘上玩了一下午。 [MSC, trad.]
   他们在海滩上玩了一下午。 [MSC, simp.]

   Tāmen zài hǎitān shàng wán le yī xiàwǔ. [Pinyin]

   They played the whole afternoon on the beach.

5. same; identical

   大小不一  ―  dàxiǎo bù yī  ―  not having the same size

   大細不一／大细不一 [Cantonese]  ―  daai⁶ sai³ bat¹ jat¹ [Jyutping]  ―  not having the same size

6. (Classical Chinese) another; alternative

   蟋蟀，一名促織。／蟋蟀，一名促织。  ―  Xīshuài, yī míng cùzhī.  ―  Crickets, also called cùzhī [lit. another name [being] cùzhī].

7. (formal) certain aforementioned

   「旋律」一詞中的「旋」字 [MSC, trad.]
   “旋律”一词中的“旋”字 [MSC, simp.]

   “xuánlǜ” yī cí zhōng de “xuán” zì [Pinyin]

   the character 旋 (xuán) within the word 旋律 (xuánlǜ)

8. With the verb modified reduplicated, expressing the transience of the verb:
   1. Indicating that the action has occurred only once

      看一看  ―  kàn yī kàn  ―  to have a look

      望一望 [Cantonese]  ―  mong⁶ jat¹ mong⁶ [Jyutping]  ―  to have a look

   2. Indicating the intention to try

      算一算  ―  suàn yī suàn  ―  to try to calculate it

      計一計／计一计 [Cantonese]  ―  gai³ jat¹ gai³ [Jyutping]  ―  to try to calculate it

9. once; as soon as; upon

   一到OP就卡。  ―  Yī dào OP jiù kǎ.  ―  It slows down once I get to the opening.

   我一拍了照片，她就立即成為眾人矚目的焦點。 [MSC, trad.]
   我一拍了照片，她就立即成为众人瞩目的焦点。 [MSC, simp.]

   Wǒ yī pāi le zhàopiàn, tā jiù lìjí chéngwèi zhòngrén zhǔmù de jiāodiǎn. [Pinyin]

   As soon as I took a picture, she ran towards the limelight.

10. ^† for the first time; at the beginning

    一見如故／一见如故  ―  yījiànrúgù  ―  to hit it off

11. ^† surprisingly; unexpectedly

    一至於此／一至于此  ―  yīzhìyúcǐ  ―  How did things ever get so far?

12. (LGBT, slang) a top

    一號／一号  ―  yīhào  ―  a top

    alt. forms: 1

• In Mandarin, when spelling “one” as a phone number, on dice, or in dominoes, one is often pronounced 幺 (yāo). This is similar to the English pronunciation of “0” as “o” in strings of digits, such as 90210.
• See pronunciation section for tone sandhi rules in Modern Standard Chinese. Also see Category:Mandarin words containing 一 undergoing tone sandhi and Category:Mandarin words containing 一 not undergoing tone sandhi.

• See 一/derived terms § Chinese.

• 幺 (yāo) (when spelling one as a phone number)

For quotations using this term, see Citations:一.

• See 一/derived terms § Chinese.

• See 一/derived terms § Chinese.

一

1. (music) Kunqu gongche notation for the note low ti (7̣).

   Synonym: 乙 (yǐ) (Cantonese opera)

Form used as the colloquial reading for “one” in most Min varieties: Fuzhou/Fuding suoʔ⁸, Fuqing θyo⁸, Gutian syøʔ⁸, Ningde søʔ⁸, Zhouning sɔʔ⁸, Putian ɬoʔ⁸, Xiamen/Quanzhou/Yongchun/Zhangzhou tsit̚⁸, Leizhou/Haikou ziak⁸, Longyan tse⁴, Youxi ɕie⁷, Jian'ou/Songxi tsi⁵, Jianyang tsi⁸. Whether all of the forms above are related and their origins remain unelucidated; they may be derived from 蜀 (cf. 獨 (“single, alone”); often written when read with the colloquial reading), 隻 (< *tjak ~ g-t(j)ik) or 禃. Some Fujian dialects use 個 and 寡 for “one”.

一

1. (Min) one
2. (Min) each; every
3. (Min) whole; entire; all

Contraction of 一個／一个 (yī gè) (Zhou, 1998).

一

1. (Beijing) one

   • 那是一深夜 [Beijing Mandarin, trad. and simp.]

     From: 2000, 梁左 and 梁欢, 《闲人马大姐》, episode 7, 18:30

     nèi shì yí shēnyè [Pinyin]

     It was a late night.

   • 嗬，您夠牛的，還雇一跟班兒的哈！ [Beijing Mandarin, trad.]
     嗬，您够牛的，还雇一跟班儿的哈！ [Beijing Mandarin, simp.]

     From: 2004, 《家有儿女》, episode 39, 02:02

     Hē, nín gòu niú de, hái gù yí gēnbānr de hā! [Pinyin]

     (please add an English translation of this example)

• This is pronounced as yí regardless of the succeeding tone (Tao, 2002). It is grammatically different from other tone sandhis of 一; it is used directly with a nominal without a classifier.

• “一”, in 漢語多功能字庫 (Multi-function Chinese Character Database)‎, 香港中文大學／香港中文大学 (the Chinese University of Hong Kong), 2014–
• Dictionary of Chinese Character Variants (教育部異體字字典), A00001
• “Entry #1”, in 臺灣閩南語常用詞辭典 [Dictionary of Frequently-Used Taiwan Minnan] (in Chinese and Min Nan), Ministry of Education, R.O.C., 2011.
• “Entry #2”, in 臺灣閩南語常用詞辭典 [Dictionary of Frequently-Used Taiwan Minnan] (in Chinese and Min Nan), Ministry of Education, R.O.C., 2011.

(grade 1 “Kyōiku” kanji)

• Go-on: いち (ichi, Jōyō)
• Kan-on: いつ (itsu, Jōyō)
• Kun: ひと (hito, 一, Jōyō); ひとつ (hitotsu, 一つ, Jōyō)
• Nanori: い (i); いっ (i'); いる (iru); おさむ (osamu)^{←をさむ (wosamu, historical)}; か (ka); かず (kazu); かた (kata); かつ (katsu); かづ (kazu); くに (kuni); すすむ (susumu); ただ (tada); ち (chi); つかさ (tsukasa); てん (ten); のぶ (nobu); はじむ (hajimu); はじめ (hajime); ひ (hi); ひじ (hiji)^{←ひぢ (fidi, historical)}; ひで (hide); ひとし (hitoshi); ひとつ (hitotsu); まこと (makoto); まさし (masashi); もと (moto)

See 一/derived terms § Japanese.

/itɨ/ → /it͡sɨ/ → /it͡ɕɨ/

From Middle Chinese 一 (MC ʔiɪt̚).

The 呉音 (goon, literally “Wu sound”) reading, so likely the initial borrowing from Middle Chinese.

Compare modern Hokkien reading it.

• (financial/formal form) 壱, 弌
• (ancient form) 𪩩

• (Tokyo) いち​ [ìchíꜜ] (Odaka – [2])[1][2]
• IPA^(key): [it͡ɕi]

• Audio

  (file)

一(いち) • (ichi) 

1. one, 1

• 一(いち) is always omitted before 十(じゅう) (jū, “ten”) and 百(ひゃく) (hyaku, “hundred”), but never before the "myriad scale digit names" including 万(まん) (man, “ten thousand”), 億(おく) (oku, “hundred million”), 兆(ちょう) (chō, “trillion”) and their combinations.
• When before 千(せん) (sen, “thousand”), 一(いち) is omitted when 千(せん) is not directly followed by 万(まん), i.e. not before 千(せん)万(まん) (senman, “ten million”), and the omission is optional.

  千(せん)百(ひゃく)十(じゅう)一(いち)

  senhyakujūichi

  1,111

  百(ひゃく)万(まん)

  hyakuman

  1,000,000

  一(いっ)千(せん)万(まん)

  issenman

  10,000,000

  千(せん)一(いち)万(まん)

  sen'ichiman

  10,010,000

一(いち) • (ichi) 

1. one, 1
2. term relating to the number one:
   1. the first in order, foremost
   2. the beginning
   3. the best
   4. a kind of; one of something
   5. (card games) an ace
3. unity
4. the bottom string of a shamisen or other Japanese musical instrument

一(いち) • (-ichi) 

1. the best in …; the most in …

   地(ち)球(きゅう)の娯(ご)楽(らく)は宇(う)宙(ちゅう)一(いち)！

   Chikyū no goraku wa uchū-ichi!

   The entertainments on the earth are the best in the universe!

   世(せ)界(かい)一(いち)かわいいよ。

   Sekai-ichi kawaii yo.

   It's the cutest in the world.

一(いち) • (ichi) 

1. one, 1
2. first, foremost
3. once
4. best, number one
5. bunch, bundle
6. entirely, wholly
7. certain one
8. merely, only

一(いち) • (Ichi) 

1. a surname

See 一/derived terms § Japanese pronunciation 1.

/itʉ/ → /it͡sʉ/ → /it͡su/

From Middle Chinese 一 (MC ʔiɪt̚).

The 漢音 (kan'on, literally “Han sound”) reading, so likely a later borrowing from Middle Chinese.

• (financial form) 壱, 弌

• (Tokyo) い​つ [íꜜtsù] (Atamadaka – [1])[1][2]
• (Tokyo) いつ​ [ìtsúꜜ] (Odaka – [2])[1][2]
• IPA^(key): [it͡sɨᵝ]

一(いつ) • (itsu) 

1. one
2. the same

一(いつ) • (itsu) 

1. one, 1
2. first, foremost
3. group
4. entirely, wholly
5. other
6. merely, only

一(いつ) • (Itsu) 

1. a female given name

See 一/derived terms § Japanese pronunciation 2.

⟨pi₁to₂⟩ → */pʲitə/ → /ɸito/ → /hito/

From Old Japanese.

Related to 二 (futa, “two”), which is its double.[3] Compare 三 (mi, “three”) and 六 (mu, “six”), 四 (yo, “four”) and 八 (ya, “eight”).

• (Tokyo) ひと​ [hìtóꜜ] (Odaka – [2])[1]
• IPA^(key): [çito̞]

一(ひと) • (hito) 

1. one, 1

一(ひと) • (hito-) 

1. one, single
2. all
3. a bit
4. a certain time

See 一/derived terms § Japanese pronunciation 3.

Shortening of hito above.

• (Tokyo) ひ​ [híꜜ] (Atamadaka – [1])[1]
• IPA^(key): [çi]

一(ひ) • (hi) 

1. one, 1

Long-pronounced form of hi above.

• (Tokyo) ひ​い [híꜜì] (Atamadaka – [1])[1]
• IPA^(key): [çiː]

一(ひい) • (hī) 

1. one, 1

Borrowing from Mandarin 一 (yī) in the Qing Dynasty.

• (Tokyo) イ​ー [íꜜì] (Atamadaka – [1])[1]
• IPA^(key): [iː]

一(イー) • (ī) 

1. one, 1

See 一/derived terms § Japanese pronunciation 4.

From 始め (hajime, “beginning, first”), the 連用形 (ren'yōkei, “stem or continuative form”) of verb 始める (hajimeru, “to begin something”).

• (Tokyo) はじめ [hàjímé] (Heiban – [0])
• IPA^(key): [ha̠ʑime̞]

一(はじめ) • (Hajime) 

1. a unisex given name
2. a surname

From Middle Chinese 一 (MC ʔiɪt̚).

• (SK Standard/Seoul) IPA^(key): [iɭ]
• Phonetic hangul: [일]

Wikisource 一 (eumhun 한 일 (han il))

1. Hanja form^? of 일 (“one”).

See 一/derived terms § Korean.

• 국제퇴계학회 대구경북지부 (國際退溪學會 大邱慶北支部) (2007). Digital Hanja Dictionary, 전자사전／電子字典.

一: Hán Việt readings: nhất[1][2][3][4], nhứt[3][5][4]
一: Nôm readings: nhất[1][2][3], nhắt[1][6], nhứt[2][3]

1. chữ Hán form of nhất (“one”).
2. chữ Hán form of nhất (“first; most”).
3. Nôm form of nhắt (“teeny; tiny”).

See 一/derived terms § Vietnamese.