curse vs falsetto

curse

verb
  • To speak or shout a vulgar curse or epithet. 

  • To place a curse upon (a person or object). 

  • To bring great evil upon; to be the cause of serious harm or unhappiness to; to furnish with that which will be a cause of deep trouble; to afflict or injure grievously; to harass or torment. 

  • To use offensive or morally inappropriate language. 

  • To call upon divine or supernatural power to send injury upon; to imprecate evil upon; to execrate. 

noun
  • A prayer or imprecation that harm may befall someone. 

  • The cause of great harm, evil, or misfortune; that which brings evil or severe affliction; torment. 

  • A supernatural detriment or hindrance; a bane. 

  • A vulgar epithet. 

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. 

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