imitation vs takeoff

imitation

noun
  • The act of imitating. 

  • A copy or simulation; something that is not the real thing. 

takeoff

noun
  • A parody or lampoon of someone or something. 

  • The spot from which one takes off; specifically, the place from which a jumper rises in leaping. 

  • The removal of sheets from the press. 

  • A quantification, especially of building materials. 

  • The rising or ascent of an aircraft or rocket into flight. 

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