quack
/kwæk/
adjective
- Relating to a person who falsely claims medical expertise; fake or fraudulent.
- The quack doctor sold useless pills to desperate patients.
- The newspaper article exposed several quack remedies for weight loss.
- She lost her savings by investing in a quack medical device.
noun
- A person who falsely claims to have medical skill or knowledge.
- Real doctors warn patients to be careful of quacks offering miracle treatments.
- The so-called doctor was exposed as a quack who had no medical license.
- My grandmother was tricked by a quack selling fake cancer cures.
- The loud, harsh sound that a duck makes.
- The duck let out a loud quack when we threw bread into the water.
- We heard the quack of a duck coming from the pond.
- A sudden quack startled the children playing nearby.
verb
- To make the sound of a duck.
- We could hear the geese honking and the ducks quacking in the distance.
- The ducks quacked loudly as we walked past the lake.
- My little brother likes to quack like a duck to make us laugh.