caw vs clack

caw

noun
  • The harsh cry of a crow. 

verb
  • To make the harsh cry of a crow, rook, or raven. 

intj
  • A rendering of the vocalisation of a crow or other corvid. 

clack

noun
  • The tongue. 

  • Chatter; prattle. 

  • An abrupt, sharp sound, especially one made by two hard objects colliding repetitively; a 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. 

verb
  • To chatter or babble; to utter rapidly without consideration. 

  • To cause to make a sudden, sharp noise, or succession of noises; to click. 

  • To make a sudden, sharp noise, or succession of noises; to click. 

  • To cut the sheep's mark off (wool), to make the wool weigh less and thus yield less duty. 

How often have the words caw and clack occurred in a corpus of books? (source: Google Ngram Viewer )