clack

American  

[klak] / klæk /

verb (used without object)

1. to make a quick, sharp sound, or a succession of such sounds, as by striking or cracking.

   The loom clacked busily under her expert hands.

2. to talk rapidly and continually or with sharpness and abruptness; chatter.

3. to cluck or cackle.

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verb (used with object)

1. to utter by clacking.

2. to cause to clack.

   He clacked the cup against the saucer.

noun

1. a clacking sound.

2. something that clacks, as a rattle.

3. rapid, continual talk; chatter.

clack British  

/ klæk /

verb

1. to make or cause to make a sound like that of two pieces of wood hitting each other

2. (intr) to jabber

3. a less common word for cluck

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noun

1. a short sharp sound

2. a person or thing that produces this sound

3. chatter

4. Also called: clack valve.  a simple nonreturn valve using either a hinged flap or a ball

Etymology

Origin of clack

1200–50; Middle English clacken; imitative

Example Sentences

Mr Clack, a solicitor at London-based commercial law firm HFW, has to deal with them when he is representing global shipping firms that have found themselves victims of cyber attacks.

From BBC • Sep. 14, 2025

His death, in a hospital, was caused by a heart attack, said Roberto Clack, a friend and colleague.

From New York Times • May 15, 2024

Onu Odim will oversee investment banking risk management and the chief operating officers for markets and capital markets will be Olivier Charhon and Amy Clack, respectively.

From Reuters • Jun. 29, 2023

But even Clack said rooftops alone won’t cut it.

From Los Angeles Times • Jun. 27, 2023

This rock has some resemblance to that of Clack Island above-mentioned.

From Narrative of a Survey of the Intertropical and Western Coasts of Australia Performed between the years 1818 and 1822 — Volume 2 by King, Phillip Parker