climax vs fall off

climax

verb
  • To reach or bring to a climax (in any sense). 

noun
  • A rhetorical device in which a series is arranged in ascending order. 

  • The final term of a rhetorical climax. 

  • The culmination of sexual pleasure, an orgasm. 

  • A culmination or acme: the last term in an ascending series 

  • The culmination of a narrative's rising action, the turning point. 

  • The culmination of ecological development, whereby species are in equilibrium with their environment. 

fall off

verb
  • To become detached or to drop from. 

  • To diminish in size, value, etc. 

  • To fall into sin; stray. 

  • To change the direction of the sail so as to point in a direction that is more down wind; to bring the bow leeward. 

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