fake vs quack

fake

verb
  • To make a counterfeit, to counterfeit, to forge, to falsify. 

  • To make a false display of, to affect, to feign, to simulate. 

  • To improvise, in jazz. 

  • To coil (a rope, line, or hawser), by winding alternately in opposite directions, in layers usually of zigzag or figure of eight form, to prevent twisting when running out. 

noun
  • A move meant to deceive an opposing player, used for gaining advantage for example when dribbling an opponent. 

  • Something which is not genuine, or is presented fraudulently. 

  • One of the circles or windings of a cable or hawser, as it lies in a coil; a single turn or coil. 

adj
  • Insincere 

  • Not real; false, fraudulent 

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 fake and quack occurred in a corpus of books? (source: Google Ngram Viewer )