一

one

No. 3 most used · 1.1% of everyday spoken Chinese: about 1 character in every 87.

Also read: yí 一个, yì 一天

How it's built

A single shape: nothing smaller to learn.

A way to remember it

One stroke, one thing. The simplest character there is.

Words

• 一个

  yí ge

  a; an; one; the whole (afternoon, summer vacation etc)
• 一起

  yì qǐ

  (in) the same place; together; in company (with); altogether; in total
• 一下

  yí xià

  (after a verb) a bit; a little (indicating brief duration, or softening the tone, or suggesting giving sth a try); all at once; suddenly
• 一样

  yí yàng

  same; like; equal to
• 一定

  yí dìng

  surely; certainly; definitely; fixed; settled; a certain ...; a given ...
• 一直

  yì zhí

  straight (in a straight line); continuously; always; all the way through

Sentences

• 一共有十多个学生。

  yí gòng yǒu shí duō gè xué sheng

  There are about ten to twenty students in total.
• 上个月是十一月吗？

  shàng gè yuè shì shí yī yuè ma

  Was last month November?
• 下一站是什么地方？

  xià yí zhàn shì shén me dì fāng

  What's the next station?
• 今天是美好的一天。

  jīn tiān shì měi hǎo de yì tiān

  Today is a beautiful day.

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How often characters are written: wordfreq by Robyn Speer, CC BY-SA 4.0, with data from Google Books Ngrams and SUBTLEX by Marc Brysbaert and others. Meanings: CC-CEDICT, CC BY-SA 4.0. Sentences: Tatoeba, CC BY 2.0 FR. How often they're said: FrequencyWords and OPUS, from OpenSubtitles.