Meaning & use
quack
The harsh, flat sound that a duck makes, or the act of making this sound.
See it in a sentence
The duck let out a quack and waddled toward the water's edge.
We could hear the quack of geese somewhere beyond the reeds.
A note on using this word
Quack can function as both a noun for the sound and a verb for making it: 'the duck quacks.'
Words with a similar meaning
This term is best learned through its definition and examples.
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. noun
A person who dishonestly claims medical knowledge or skill that they do not actually have.
The old remedy was sold by a quack who had no real medical training.
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