(kuài) — (adjective) fast, quick; (adverb) soon, shortly; almost

Definition

快 covers both 'fast' (adjective) and 'soon/almost' (adverb) — the HSK 1–2 all-rounder. More formal siblings 快速 and 迅速 are written/technical; 速度 is the noun for speed.

adjective
fastquick
adverb
soonshortlyalmost

Examples

  • Tā xiě dé kuài.
    He writes fast.
  • Wǒ men kuài dào le.
    We'll arrive soon.
  • Xiàn zài kuài shí diǎn le.
    It's almost ten o'clock.

Origin

Sound + meaning
六书liùshū
形声xíngshēng

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
Written in full asxīn
Sound part声符shēngfú
guàikuài
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

快 pairs the left part 忄 (full form 心, the heart) with the right part 夬, which gives the sound.

Grammar

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