quack

word

/ˈkwæk/
kwak
/kwˈæk/
kwak

Definition

'Quack' is the sound that a duck makes. It can also mean a fake doctor, someone pretending to be a medical professional without real qualifications.

Usage & Nuances

As a noun or verb for duck sounds (children’s books, animal context); as a noun (informal/disparaging) for a fake doctor. 'Quack doctor' is common. As insult, not formal. Don’t confuse with 'quark' (particle) or 'crack' (break).

Example Sentences

The duck made a loud quack.

basic

My baby laughed when she heard the quack.

basic

He thinks that doctor is a quack.

basic

Did you hear that? The ducks are starting to quack already!

natural

Be careful—some online health 'experts' are total quacks.

natural

Everyone laughed when she did a perfect quack impression in class.

natural