quack
IPA: kwˈæk
noun
- The sound made by a duck.
- (derogatory) 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
- (figuratively, derogatory) Any similar charlatan or incompetent professional.
- (humorous slang, mildly derogatory) Any doctor.
verb
- To make a noise like a duck.
- (intransitive) Of a queen bee: to make a high-pitched sound during certain stages of development.
- To practice or commit quackery (fraudulent medicine).
- (obsolete) To make vain and loud pretensions.
adjective
- Falsely presented as having medicinal powers.
Examples of "quack" in Sentences
- He heard quacks at night.
- The girl was quacking in cold.
- He was annoyed by loud quacks.
- Where is this quack coming from
- The sound of quack scared people.
- People found the source of quacks.
- Suddenly, the duck stopped quacks.
- Brown was actually a swindler and quack.
- Next he became a quack doctor and soothsayer.
- This is the quack and the conduct of this man is quackery.