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 (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
   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 (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 adverb pure / concentrated
   Domain: Modern Chinese 现代汉语
   Notes: (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 (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 (NCCED '一' 2)
8. yī pronoun each
   Domain: Modern Chinese 现代汉语
   Notes: (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: (NCCED '一' 10) For example, 烤一烤 'heat up.' (Lao She, 2003, p. 216)

Contained in

• 国家一级保护(國家一級保護) Grade One State protected (species)
• 第一次 first
• 吃一堑，长一智(吃一塹，長一智) Fall into the moat and you'll be wiser next time / One only learns from one's mistakes.
• 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
• 一朝 immediately
• 天下乌鸦一般黑(天下烏鴉一般黑) all crows are black / evil people are bad all over the world
• 等一下儿(等一下兒) wait on
• 一灵真性(一靈真性) soul / spirit
• 一家子 the whole family
• 一针见血(一針見血) hit the nail on the head
• 一席地 a place for a seat / proper place
• 瞄一眼 to shoot a glance at
• 一个头两个大(一個頭兩個大) to feel as though one's head could explode
• 聊备一格(聊備一格) to use as a stopgap / to give perfunctory recognition / token / nominal
• 一无所获(一無所獲) to gain nothing / to end up empty-handed
• 遐迩一体(遐邇一體) both near and distant treated alike
• 五分之一 one fifth
• 一事无成(一事無成) to accomplish nothing / to get nowhere
• 不赞一词(不贊一詞) to keep silent / to make no comment
• 一己 oneself
• 一般见识(一般見識) to lower oneself to somebody's level / to argue with somebody less well-informed
• 沧海一粟(滄海一粟) a drop in the ocean
• 同一个世界，同一个梦想(同一個世界，同一個夢想) One world - one dream, motto of 2008 Beijing Olympic games
• 一九二八年 1928
• 一流 top quality / top ranking ; same category ; same school of thought ; an ancient way of counting money
• 一九五〇年 1950
• 一退六二五 1 divided by 16 is 0.0625 (abacus rule) / to deny responsibility / to pass the buck
• 一点就通(一點就通) a hint is all that is needed / understanding each other without the need to explain
• 一清早 early in the morning
• 一九三五年 1935
• 一举成功(一舉成功) success at one go / to succeed at the first attempt
• 举一反三(舉一反三) to raise one and infer three / to deduce many things from one case
• 助一臂之力 to lend a helping hand
• 一九四八年 1948
• 百密一疏 even with very careful attention, to make one mistake
• 一一 one by one / one after another ; one or two ; in order ; a few
• 一知半解 to know one and understand half / a smattering of knowledge / dilettante / amateur
• 一段时间(一段時間) a period of time
• 一回生二回熟 unfamiliar at first, but well accustomed soon enough
• 小菜一碟 a small appetizer / a piece of cake/ very easy
• 十一月 November / the Eleventh Month
• 头一(頭一) the first

Also contained in

续一切经音义 、 一谛 、 一色边 、 一心二门 、 一偈 、 一甲 、 大威德金轮佛顶炽盛光如来消除一切灾难陀罗尼经 、 根本说一切有部出家授近圆羯磨仪范 、 般若波罗蜜多理趣经大乐不空三昧真实金刚萨埵菩萨等一十七圣大曼荼罗义述

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: 672
• 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: 460

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
• 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
• 一夫 (一夫) 一夫不獲 — Book of Documents 尚書, 商書 說命下（僞） Shang Shu - Charge to Yue III (forged) — count: 4