Definition of "clack"
- noun
An abrupt, sharp sound, especially one made by two hard objects colliding repetitively; a clatter; in sound, midway between a click and a clunk.
Anything that causes a clacking noise, such as the clapper of a mill, or a clack valve.
Chatter; prattle.
- verb
To make such a sound.
To chatter or babble.
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