cheater vs impostor

cheater

noun
  • One who cheats. 

  • An improvised breaker bar made from a length of pipe and a wrench (spanner), usually used to free screws, bolts, etc. that are difficult to remove with a ratchet or wrench alone. 

impostor

noun
  • Someone who attempts to deceive by using an assumed name or identity. 

  • A sprite or animation integrated into a three-dimensional scene, but not based on an actual 3D model. 

  • A term referenced in an unusual grammatical person. 

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