quack

1. v. i. To utter a sound like the cry of a duck. Source: opted

2. v. i. To make vain and loud pretensions; to boast. Source: opted

3. v. i. To act the part of a quack, or pretender. Source: opted

4. n. The cry of the duck, or a sound in imitation of it; a hoarse, quacking noise. Source: opted

5. n. A boastful pretender to medical skill; an empiric; an ignorant practitioner. Source: opted

6. n. Hence, one who boastfully pretends to skill or knowledge of any kind not possessed; a charlatan. Source: opted

7. a. Pertaining to or characterized by, boasting and pretension; used by quacks; pretending to cure diseases; as, a quack medicine; a quack doctor. Source: opted

8. adj. medically unqualified Source: wordnet

9. n. an untrained person who pretends to be a physician and who dispenses medical advice Source: wordnet

10. n. the harsh sound of a duck Source: wordnet

11. v. utter quacking noises Source: wordnet

12. v. act as a medical quack or a charlatan Source: wordnet

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