bray vs squeal

bray

noun
  • Any discordant, grating, or harsh sound. 

  • The cry of an animal, now chiefly that of animals related to the ass or donkey, or the camel. 

verb
  • To make or utter (a shout, sound, etc.) discordantly, loudly, or in a harsh and grating manner. 

  • Of an animal (now chiefly of animals related to the ass or donkey, and the camel): to make its cry. 

  • To make a harsh, discordant sound like a donkey's bray. 

  • To hit (someone or something). 

squeal

noun
  • A high-pitched sound, such as the scream of a child or a female person, or noisy worn-down brake pads. 

  • The cry of a pig. 

verb
  • To make a squealing noise. 

  • To scream with a shrill, prolonged sound. 

  • To give sensitive information about someone to a third party; to rat on someone. 

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