chick vs chook

chick

noun
  • A young chicken. 

  • A screen or blind made of finely slit bamboo and twine, hung in doorways or windows. 

  • A young, typically attractive, woman or teenage girl. 

  • A friendly fighter aircraft. 

  • A young bird. 

verb
  • To compress the lips and then separate them quickly, resulting in a percussive noise. 

chook

noun
  • A chicken, especially a hen. 

  • A cooked chicken; a chicken dressed for cooking. 

intj
  • A call made to chickens. 

  • An imitation of the call of a chicken. 

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