decapitation vs penetration

decapitation

noun
  • Beheading; the act of beheading or decapitating. 

  • The ousting or destruction of the ruling body of a government or other organization. 

  • The unseating of a senior politician. 

penetration

noun
  • The act of penetrating something. 

  • Specifically, the insertion of the penis (or similar object) during sexual intercourse. 

  • The act of penetrating a given situation with the mind or faculties; perception, discernment. 

  • A number or fraction that represents how many cards/decks will be dealt before shuffling, in contrast to the total number of cards/decks in play. 

  • The proportion of the target audience who buy the advertised product or service. 

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