What does clack mean?
"Clack" denotes a short, sharp, dry knocking sound — the noise of hard objects striking one another — and, as a verb, both the making of that sound and the act of causing it. It is closely related to "clatter," but where clatter suggests a longer, more irregular series of noises, a clack is a single crisp impact: the snap of billiard balls, the strike of typewriter keys, or heels hitting stone pavement. The word is thoroughly onomatopoeic, imitating the very noise it names, and it appears comfortably in both ordinary speech and descriptive prose. Writers often use it to evoke busy, mechanical, or tactile scenes — a weaving shuttle, a keyboard under fast fingers, a train crossing joints in the rail. Its vividness lies in its economy: one syllable that carries the whole sound it describes, making it a favorite choice when precision and immediacy matter.
A short, sharp, dry knocking or clicking sound produced by hard objects striking together.
"The steady clack of the shuttle filled the weaver's workshop."
Often used with "of" to name the source of the sound, e.g. "the clack of heels."
To make a short, sharp knocking sound, or to cause two hard objects to strike together producing such a sound.
"He clacked his castanets in time with the music."
Both transitive and intransitive uses are common; the verb is fully regular (clacks, clacked, clacking).
Used when referring to multiple instances of the sharp knocking sound.
"The distant clacks of hooves echoed down the cobbled street."
Before keyboards went quiet, offices didn't hum with typing — they rattled with the clack of a thousand keys.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of clack
"Clack" is of imitative (onomatopoeic) origin, formed in Middle English by echoing a sharp knocking sound. It is related to a family of similarly formed English words including "clatter" and "click," which likewise mimic percussive noises rather than deriving from any classical root. The word has been part of English since at least the medieval period and has retained its core sense of a sharp, dry knock throughout its history.
Related word forms
How clack is actually used
Common in both everyday and literary registers. Often used onomatopoeically; frequent in descriptions of typewriters, looms, heels on pavement, and train wheels. The verb can be intransitive ("the door clacked shut") or transitive ("he clacked the tiles together").
Easily confused with clack
A claque is a group of hired applauders at a performance, while clack refers only to a sharp knocking sound.
A click is a lighter, more metallic snapping sound, whereas a clack is heavier and drier, like wood or bone striking together.