Learn Chinese Characters

Meaning

fast; quick; swift

Chinese: 速度快,也表示高兴。

Hear the Four Tones

The same syllable “kuai” becomes a different word in each tone. 快 is the 4th tone. Tap any tone to hear a native voice and see its pitch shape.

Stroke Order

Tap Animate to watch the strokes in order, or Practice to trace it yourself.

Common Words

  • 快乐kuài lèhappy; joyful
  • 快要kuài yàonearly at the point of (doing sth); about to (do sth)
  • 快餐kuài cānfast food; snack; quick meal
  • 凉快liáng kuaipleasantly cool (weather etc); to cool oneself; to cool off; (Tw) (slang) (of clothing) scanty
  • 快点儿kuài diǎn rcolloquial (-r) form of 快点

Example Sentence

时间过得真快。Shí jiān guò de zhēn kuài.Time really flies.

时间Shí jiān(concept of) time过得guò deHow are you getting by?zhēnreallykuàirapid

Go deeper

Where this character comes from

The heart radical 忄 (meaning) plus 夬 (sound): a heart that is light and swift — ‘fast / quick’, and also ‘pleased’.

A way to remember it

A heart (忄) racing along — fast, and glad.

Easy to confuse with

  • kuài‘Lump / piece’: shares the 夬 sound, but with the earth radical 土.