The meaning of QUACK is to make the characteristic cry of a duck. How to use quack in a sentence.

A quack is a "fraudulent or ignorant pretender to medical skill" or "a person who pretends, professionally or publicly, to have skill, knowledge, qualification or credentials they do not …

QUACK definition: 1. to make the usual sound of a duck: 2. a person who dishonestly pretends to have medical skills…. Learn more.

Quack definition: the harsh, throaty cry of a duck or any similar sound.. See examples of QUACK used in a sentence.

quack 2 (kwæk) n. 1. a fraudulent pretender to medical skill. 2. a person who pretends, professionally or publicly, to skill, knowledge, or qualifications he or she does not possess; a …

Oct 27, 2025 · quack (third-person singular simple present quacks, present participle quacking, simple past and past participle quacked) To make a noise like a duck.

If you call someone a quack or a quack doctor, you mean that they claim to be skilled in medicine but are not.

Discover the meaning of Quack, explore its usage in everyday language, popular idioms, and fun facts that make this word fascinating. Perfect for learners and curious minds!

Quack is an adjective that describes something false, pretentious, or fraudulent, especially about medical practices or individuals. It refers to someone or something that falsely claims expertise …

Factsheet What does the word quack mean? There are three meanings listed in OED's entry for the word quack. See ‘Meaning & use’ for definitions, usage, and quotation evidence.