falsetto vs shriek

falsetto

verb
  • To sing or utter in falsetto. 

noun
  • A person who sings in falsetto. 

  • The "false" (singing) voice in any human, usually airy and lacking a purity of vowels; created by utilizing the next highest vocal folds above those used for speech and normal range singing. It is commonly confused with the head voice register. 

shriek

verb
  • To utter sharply and shrilly; to utter in or with a shriek or shrieks. 

  • To utter a loud, sharp, shrill sound or cry, as do some birds and beasts; to scream, as in a sudden fright, in horror or anguish. 

noun
  • An exclamation mark. 

  • A sharp, shrill outcry or scream; a shrill wild cry such as is caused by sudden or extreme terror, pain, or the like. 

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