quack Hear it!

quack1 definition

quack (kwak)

intransitive verb

to utter the characteristic sound or cry of a duck, or a sound like it

Etymology: echoic

noun

the sound made by a duck, or any sound like it
quack2 definition

quack (kwak)

noun

  1. an untrained person who practices medicine fraudulently
  2. any person who pretends to have knowledge or skill that he or she does not have in a particular field; charlatan

Etymology: short for quacksalver

adjective

  1. characterized by pretentious claims with little or no foundation
  2. dishonestly claiming to effect a cure

intransitive verb

to engage in quackery

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