squeal vs tinnitus

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. 

tinnitus

noun
  • The perception of noise, such as a ringing or beating sound, which has no external source. 

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