quackverb [ I ]
uk/kwæk/us/kwæk/to make the usual sound of a duck:
The ducks started quacking loudly when we threw them some bread.
Thesaurus: synonyms and related words
Animal (non-human) sounds
- baa
- bark
- bellow
- caterwaul
- caw
- cluck
- coo
- growl
- hiss
- howling
- oink
- peep
- snarl
- squawk
- squee
- whimper
- whine
- yelp
- yip
- yowl
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quacknoun [ C ]
uk/kwæk/us/kwæk/quack noun [ C ] (PERSON)
disapproving a person who dishonestly pretends to have medical skills or knowledge
UK informal often disapproving a doctor:
Have you seen a quack about that cough?
Thesaurus: synonyms and related words
Faking & pretending
- a wolf in sheep's clothing idiom
- affect
- assume
- believe
- bluff
- changeling
- charlatan
- falsify
- feign
- fraud
- go through the motions idiom
- guise
- phoney
- play at sth
- play possum idiom
- play sth out
- play-acting
- professed
- purport
- put sth on
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You can also find related words, phrases, and synonyms in the topics:
Medical treatment: doctors & health workers generally
quack noun [ C ] (SOUND)
[ C ] the sound that a duck makes
Thesaurus: synonyms and related words
Animal (non-human) sounds
- baa
- bark
- bellow
- caterwaul
- caw
- cluck
- coo
- growl
- hiss
- howling
- oink
- peep
- snarl
- squawk
- squee
- whimper
- whine
- yelp
- yip
- yowl
See more results »