() — to knock, to tap (against sth hard); to knock off (mud, ashes, etc.)

Definition

磕 (kē) means knocking against something hard — usually to dislodge something (mud, ashes) or by accident (bumping a head). 敲 is a deliberate knock or strike; 磕 implies harder contact or a self-inflicted bump.

verb
to knockto tap (against sth hard)to knock off (mud, ashes, etc.)

Examples

  • Tā bù xiǎo xīn bǎ tóu kē zài mén kuàng shàng le.
    He accidentally knocked his head on the door frame.
  • Tā bǎ jī dàn zài wǎn biān kē kāi.
    She cracked the egg on the bowl edge.
  • Tā yòng lì kē diào xuē zi shàng de ní.
    He forcefully knocked the mud off his boots.

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
shístone
Sound part声符shēngfú
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

磕 is built from 石 (stone) plus 盍, a part that supplies the sound hé.

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