Meaning of the word quack in English

What does quack mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

quack

US /kwæk/
UK /kwæk/
"quack" picture

Noun

1.

the characteristic harsh sound made by a duck

Example:
The duck let out a loud quack as it waddled by.
We heard the distinct quack of a mallard from the pond.
2.

a person who dishonestly claims to have special knowledge and skill in some field, typically medicine

Example:
The doctor was exposed as a quack after his fraudulent treatments were revealed.
Beware of online health advice from a self-proclaimed quack.

Verb

1.

(of a duck) to make a characteristic harsh sound

Example:
The duck started to quack loudly when it saw the bread.
We could hear the ducks quacking from across the lake.
2.

to act as a quack; to make false claims about one's knowledge or skills

Example:
He was accused of quacking about miracle cures.
Don't trust anyone who tries to quack their way into your trust.

Adjective

1.

having the characteristics of a quack; fraudulent or dishonest, especially in medicine

Example:
He was selling quack remedies to desperate patients.
The investigation revealed a quack scheme to defraud the elderly.
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