一 yī

1. yī number one
   Domain: Modern Chinese 现代汉语 , Subdomain: Quantity
   Notes: In this sense, 一 is used in counting items (Guoyu '一' n 1; Kroll 2015 '一' 1, p. 540; NCCED '一' 1; Ho 2002, '一' 1; Rouzer 2007; p. 14). For example, 一个中心 'one center.' (Xinhua Net, 2015-12-25) Tone sandhi 变调 modifies yī to yì when it is followed by a first, second or third tone. For example, 一年 yì nián 'one year'. Also, yī becomes yì when it is followed by a fourth tone. For exmaple, 一条 yì tiáo 'one strand' (Sun 2006, loc. 545). 一 is the 2nd most common word in the 1985 Beijing Language Insititue frequency wordlist (Ho 2002, '一').
2. yī noun Kangxi radical 1
   Domain: Modern Chinese 现代汉语 , Subdomain: Radicals
   Notes: (ABC back cover; GHC p. 7)
3. yī adverb as soon as; all at once
   Domain: Modern Chinese 现代汉语 , Concept: Correlative 关联词
   Notes: This adverb is often used as a connecting word in the subordinate clause of subordinate complex sentences. It is often used in the pattern 一…，就… to express that if a certain condition is met the result will surely follow (Guoyu '一' adv 1; Kroll 2015 '一' 4, p. 540; NCCED '一' 9; Ho 2002, '一' 2; Li Shaoqi, 2003, pp. 194-195). For example, 一出来，才晓得自己的错误 'As soon as he came out, he realized his own mistake.' (Lao She, 2003, p. 260)
4. yī adjective pure; concentrated
   Domain: Modern Chinese 现代汉语
   Notes: (Guoyu '一' adj 3; Kroll 2015 '一' 2, p. 540; NCCED '一' 4)
5. yì adverb whole; all
   Domain: Modern Chinese 现代汉语
   Notes: In this sense, 一 is placed in front of nouns to indicate a complete unit (Guoyu '一' adj 4; Kroll 2015 '一' 3, p. 540; NCCED '一' 3; Ho 2002, '一' 3). For example, 一冬天 'throughout the whole winter.' (Lao She, 2003, p. 221)
6. yī ordinal first
   Domain: Modern Chinese 现代汉语 , Subdomain: Quantity
   Notes: (Rouzer 2007; p. 14)
7. yī adjective the same
   Domain: Modern Chinese 现代汉语
   Notes: In the sense of 一样 (Guoyu '一' adj 2; Kroll 2015 '一' 2b, p. 540; NCCED '一' 2)
8. yī adverb each
   Domain: Modern Chinese 现代汉语
   Notes: In the sense of 每 (Guoyu '一' adv 5; NCCED '一' 5)
9. yī pronoun certain
   Domain: Modern Chinese 现代汉语
   Notes: (NCCED '一' 6)
10. yī adverb throughout
    Domain: Modern Chinese 现代汉语
    Notes: (NCCED '一' 8) For example, 前前后后的一想 'thought about it for a while.' (Lao She, 2003, p. 218; Li Shaoqi, 2003, pp. 195)
11. yī adverb used in between a reduplicated verb
    Domain: Modern Chinese 现代汉语
    Notes: (Guoyu '一' adv 6; NCCED '一' 10) For example, 烤一烤 'heat up.' (Lao She, 2003, p. 216)
12. yī adjective sole; single
    Domain: Modern Chinese 现代汉语
    Notes: (Guoyu '一' adj 1; Kroll 2015 '一' 1a, p. 540)
13. yī adjective a very small amount
    Domain: Modern Chinese 现代汉语
    Notes: (Kroll 2015 '一' 1b, p. 540)
14. yī proper noun Yi
    Domain: Modern Chinese 现代汉语 , Subdomain: Names , Concept: Surname 姓氏
    Notes: (Guoyu '一' n 2)
15. yī adjective other
    Domain: Literary Chinese 文言文
    Notes: (Guoyu '一' n 7)
16. yī verb to unify
    Domain: Literary Chinese 文言文
    Notes: (Guoyu '一' v)
17. yī verb accidentally; coincidentally
    Domain: Literary Chinese 文言文
    Notes: In the sense of 偶然 (Guoyu '一' adv 2)
18. yī verb abruptly; suddenly
    Domain: Literary Chinese 文言文
    Notes: In the sense of 偶然 (Guoyu '一' adv 3)
19. yī conjunction or
    Domain: Literary Chinese 文言文
    Notes: In the sense of 或 (Guoyu '一' conj)

Contained in

• 一分耕耘，一分收获(一分耕耘，一分收穫) you get what you put in; you reap what you sow
• 一枝花 two, three, four ; yi zhi hua
• 尝一尝(嘗一嘗) try a little
• 一声不吭(一聲不吭) to not say a word
• 彼一时此一时(彼一時此一時) that was one thing, and this is another; times have changed
• 一九五九年 1959
• 一举一动(一舉一動) each and every move
• 一清二白 perfectly clean; blameless; unimpeachable
• 付之一炬 to put to the torch; to commit to the flames; to burn something down deliberately
• 一项一项地(一項一項地) one by one
• 一九六三年 1963
• 一朝被蛇咬，十年怕井绳(一朝被蛇咬，十年怕井繩) once bitten by a snake, ten years in fear of a well rope; once bitten, twice shy
• 冰山一角 tip of the iceberg
• 一月 January; the First Month ; one month
• 轰动一时(轟動一時) to cause a sensation
• 台上一分钟，台下十年功(臺上一分鐘，臺下十年功) ten years of practice for one minute on the stage
• 一问三不知(一問三不知) to reply don't know whatever the question; absolutely no idea of what's going on; complete ignorance
• 互相勾结在一起(互相勾結在一起) collude together
• 一九六六年 1966
• 一朝 immediately
• 说一不二(說一不二) to say one and mean just that; to keep one's word
• 假一赔十(假一賠十) if one is fake, I shall compensate you for ten of them; (of goods) 100% genuine
• 什一 one part in ten
• 一概 generally; without exception ; identical; same ; one side ; whole; total
• 以一当十(以一當十) one force against another ten times its size
• 一一映射 bijective map; one-to-one correspondence
• 一般人 average person
• 略见一斑(略見一斑) to glimpse just one spot (of the panther); to get an inkling of the whole picture
• 一窍不通(一竅不通) doesn't (even) enter a single aperture (of one's head); I don't understand a word
• 一次方程 a linear equation
• 高一 tenth grade
• 一蹴即至 to get there in one step; easily done; success at a stroke; to get results overnight
• 一家之主 master of the house; family head
• 奄奄一息 at one's last breath; about to die
• 一字褒贬(一字褒貶) dispensing praise or blame with a single word; concise and powerful style
• 一直 straight (in a straight line) ; straight (in a straight line); continuously
• 一说(一說) an expression of opinion; according to some
• 一语双关(一語雙關) to make a pun; to have a double meaning; double entendre
• 江天一色 river and sky have a single color
• 一次生，两次熟(一次生，兩次熟) unfamiliar at first but you get used to it; strangers are first meeting, but soon friends
• 赌上一局(賭上一局) to engage in a game of chance; to gamble; to make a bet
• 聚在一起 to get together
• 躲得过初一，躲不过十五(躲得過初一，躲不過十五) you may go undetected during the new moon, but at full moon you'll be found out; you can't put it off forever
• 一会儿(一會兒) a while; a moment

Also contained in

做一日和尚撞一天钟 、 闻一多 、 第一义谛 、 异品一分转同品遍转不定 、 一识 、 一中原则 、 一喝如金刚王宝剑

Word is mentioned most frequently in

Truncated for common words

• 卷二百〇六 志第一百五十九 藝文五 Volume 206 Treatises 159: Arts and Literature 5 History of Song 宋史 — count: 853
• 卷二百〇五 志第一百五十八 藝文四 Volume 205 Treatises 158: Arts and Literature 4 History of Song 宋史 — count: 673
• 卷34　志第29 經籍三 Volume 34 Treatises 29: Bibliography 3 Book of Sui 隋書 — count: 665
• 卷二百〇七 志第一百六十 藝文六 Volume 207 Treatises 160: Arts and Literature 6 History of Song 宋史 — count: 658
• 卷八十五　志第三十五: 　百官一 Volume 85 Treatises 38: Official Posts 1 History of Yuan 元史 — count: 563
• 卷五十九　　　　志第四十九　　藝文三 Volume 59 Treatises 55: The Arts 3 New Book of Tang 新唐書 — count: 557
• 卷二百〇八 志第一百六十一 藝文七 Volume 208 Treatises 161: Arts and Literature 7 History of Song 宋史 — count: 552
• 卷八十七　志第三十七: 　百官三 Volume 87 Treatises 40: Official Posts 3 History of Yuan 元史 — count: 494
• 卷35　志第30 經籍四 Volume 35 Treatises 30: Bibliography 4 Book of Sui 隋書 — count: 488
• 卷四十四 志第二十四: 職官三 Volume 44 Treatises 24: Government Service 3 Old Book of Tang 舊唐書 — count: 459

Collocations

• 一人 (一人) 繫一人之本 — The Book of Songs 詩經, 序 Preface — count: 62
• 一章 (一章) 一章三句 — The Book of Songs 詩經, 國風‧召南‧行露 Lessons from the states - Odes Of Shao And The South - Xing Lu — count: 51
• 予一 (予一) 爾尚輔予一人致天之罰 — Book of Documents 尚書, 商書 湯誓 Shang Shu - Speech of Tang — count: 25
• 一作 (一作) 一作冡宰 — The Book of Songs 詩經, 小雅‧節南山之什‧十月之交 Minor odes of the kingdom - Jie Nan Shan Zhi Shen - Shi Yue Zhi Jiao — count: 17
• 一年 (一年) 十有一年 — The Commentary of Zuo on the Spring and Autumn Annals 春秋左氏傳, 隱公 Lord Yin — count: 15
• 一曰 (一曰) 一曰風 — The Book of Songs 詩經, 序 Preface — count: 10
• 美一 (美一) 有美一人 — The Book of Songs 詩經, 國風‧鄭‧野有蔓草 Lessons from the states - Odes of Zheng - Ye You Man Cao — count: 5
• 一国 (一國) 是以一國之事 — The Book of Songs 詩經, 序 Preface — count: 5
• 一德 (一德) 眷求一德 — Book of Documents 尚書, 商書 咸有一德 Shang Shu - Common Possession of Pure Virtue — count: 4
• 弓一 (弓一) 彤弓一 — Book of Documents 尚書, 周書 文侯之命 Zhou Shu - Charge to the Marquis Wen — count: 4