HSK 1 · Numbers
一 yī “one” in Chinese
Same in Traditional
What 一 means
- one
- single
- a (article)
- as soon as
- entire
More meanings from CC-CEDICT
- whole
- all
- throughout
- “one” radical in Chinese characters (Kangxi radical 1)
How to say 一
一yī1st tone, high and level
一 in a sentence
- 一…就…: as soon as
How 一 is built
Each colour is one part of the character. Parts repeat across thousands of characters, so learning them makes new words easier. See all 214 in our radicals chart.

一yīone
一 is a single shape of 1 stroke. Learn it whole, then watch its stroke order below.
Memory aidOne stroke for one, the way people once counted with rods.
How to write 一
一 1 strokes
Watch the order, then press Try writing it and draw each stroke in the grid. Each stroke is checked as you go.

Words related to 一
Words with 一
一半yībàn · half一些yīxiē · some一点儿yìdiǎnr · a little一起yìqǐ · together第一dìyī · first一下yíxià · (after a verb) briefly一般yìbān · general一定yídìng · surely一共yígòng · altogether一样yíyàng · the same
More words: Numbers & Money
FAQs
一 (yī) means “one” or “single”. It is an HSK 1 word, so it is one of the words learners meet early.
Say it yī: yī with a 1st tone. Press Listen at the top of this page to hear it, or Slowly to hear each tone clearly.
Yes. 一 is written the same way in Simplified and Traditional characters.
Add a Chinese (Simplified) pinyin keyboard to your phone or computer, type yi with no tone marks or spaces, then choose 一 from the suggestions. Typing yi into this dictionary’s search box finds it too.
一 is an HSK 1 word in the HSK 2.0 word lists.
Sources: meaning and pinyin checked by a native Mandarin teacher against the official HSK lists. Extra meanings from CC-CEDICT (CC BY-SA 4.0). Example sentences from Tatoeba (CC BY 2.0 FR). Character parts and stroke order from Make Me a Hanzi.