QUACK

quack

Noun

  1. The sound made by a duck.
    Did you hear that duck make a quack?

Noun (etymology 2)

  1. A fraudulent healer or incompetent professional, especially a doctor of medicine; an impostor who claims to have qualifications to practice medicine.
    That doctor is nothing but a lousy quack!
  2. A charlatan.
  3. Carlyle
  4. A doctor.

Verb

  1. To make a noise like a duck.
    The more breadcrumbs I threw on the ground, the more they quacked.
    Do you hear the ducks quack?

Verb (etymology 2)

  1. To practice or commit quackery.
  2. To make vain and loud pretensions; to boast.

Adjective

  1. falsely presented as having medicinal powers.
    Don't get your hopes up; that's quack medicine!


The above text is a snippet from Wiktionary: quack
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