cheat vs quack

cheat

verb
  • To deceive; to fool; to trick. 

  • To be unfaithful to one's spouse or partner; to commit adultery, or to engage in sexual or romantic conduct with a person other than one's partner in contravention of the rules of society or agreement in the relationship. 

  • To manage to avoid something even though it seemed inevitable. 

  • To violate rules in order to gain, or attempt to gain, advantage from a situation. 

noun
  • A card game where the goal is to have no cards remaining in a hand, often by telling lies. 

  • A hidden means of gaining an unfair advantage in a video game, often by entering a cheat code. 

  • Someone who cheats. 

  • An act of deception or fraud; that which is the means of fraud or deception. 

  • The weed cheatgrass. 

quack

verb
  • To practice or commit quackery (fraudulent medicine). 

  • To make a noise like a duck. 

  • Of a queen bee: to make a high-pitched sound during certain stages of development. 

adj
  • Falsely presented as having medicinal powers. 

noun
  • A fraudulent healer, especially a bombastic peddler in worthless treatments, a doctor who makes false diagnoses for monetary benefit, or an untrained or poorly trained doctor who uses fraudulent credentials to attract patients 

  • Any similar charlatan or incompetent professional. 

  • The sound made by a duck. 

  • Any doctor. 

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