clack

Noun

• a simple valve with a hinge on one side; allows fluid to flow in only one direction

• a sharp abrupt noise as if two objects hit together; may be repeated

Verb

• speak (about unimportant matters) rapidly and incessantly

• make a clucking sounds, characteristic of hens

• make a rattling sound
  • clattering dishes
    

Related words

• Synonyms: 
  clack valve , clapper valve , clap , cluck , click , clatter , brattle