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Noun: clack  klak
  1. A sharp abrupt noise as if two objects hit together; may be repeated
    - clap
     
  2. A simple valve with a hinge on one side; allows fluid to flow in only one direction
    - clack valve, clapper valve
Verb: clack  klak
  1. Make a rattling sound
    "clacking dishes";
    - clatter, brattle
     
  2. Make a clucking sounds, characteristic of hens
    - cluck, click
     
  3. Speak (about unimportant matters) rapidly and incessantly
    - chatter, piffle, palaver, prate, tittle-tattle, twaddle, maunder, prattle, blab, gibber, tattle, blabber, gabble, rabbit [Brit], vapor [Brit, Cdn], witter [Brit], yatter [Brit], yabber [Brit]

Sounds like: claque

Derived forms: clacked, clacking, clacks

Type of: emit, let loose, let out, make noise, mouth, noise, resound, speak, talk, utter, valve, verbalise [Brit], verbalize

Encyclopedia: Clack