快
快 (kuài) means “fast”. It is made of 忄 + 夬 and has 7 strokes, and is an HSK 2 word in the current exam syllabus (2025).
Break 快 into its parts
What 快 is made of
- 忄 xīn — heart
- 八 bā — eight
- 丨 — vertical stroke
- 夬 guài — decisive
- 大 dà — big
- 一 — horizontal stroke
- 人 rén — person
- 大 dà — big
Origin hint: A decisive 夬 will 忄; 夬 also provides the pronunciation (from the Make Me a Hanzi dataset; treat as a memory aid where history is uncertain)
快 stroke order
Example sentences
他跑得很快。Tā pǎo de hěn kuài.He runs very fast.
快来吧，车来了！Kuài lái ba, chē lái le!Come quickly, the bus is here!
Words with 快
- 快餐kuàicānfast food
- 快点儿kuài diǎnrhurry up
- 快乐kuàilèhappy
- 快要kuàiyàoto be about to
- 凉快liángkuainice and cool
- 赶快gǎnkuàiquickly
- 加快jiākuàito speed up
- 快速kuàisùfast
- 尽快jǐnkuàias soon as possible
- 快递kuàidìexpress delivery
- 痛快tòngkuàihappy
- 愉快yúkuàihappy
- 快活kuàihuohappy
- 爽快shuǎngkuaifrank
Also built with 忄
- 忆yìto remember
- 忙mángbusy
- 忧yōusad
- 怀huáibosom
- 怕pàto be afraid of
- 怖bùfrightened
- 怜liánto pity
- 性xìng-ness (suffix for quality)
- 怪guàistrange
- 怯qièafraid
- 恍huǎngabsent-minded
- 恒héngconstant
Quick facts
| Pinyin | kuài |
|---|---|
| Meaning | fast; quick |
| Strokes | 7 |
| Radical | 心 (heart, #61) |
| Pattern | Left–right |
| HSK | HSK 2 (exam 2025) · HSK 1 (2021) · Old HSK 2 |
Questions about 快
What does 快 mean?
快 (kuài) means “fast; quick”.
How many strokes does 快 have?
快 has 7 strokes.
What is the radical of 快?
The radical of 快 is 心 (xīn, “heart”), Kangxi radical number 61.
What parts make up 快?
快 is made of 忄 (heart) and 夬 (decisive).
Which HSK level is 快?
快 is in HSK 2 (exam 2025) and HSK 1 (2021) and Old HSK 2.
Learn 快 with its group
It is part of HSK 1 (2021) · Group 15: a short group with quick checks and spaced repeats.