First Known Use: 14th century
Dictionary
1quack
verb \ˈkwak\
Definition of QUACK
intransitive verb
: to make the characteristic cry of a duck
ADVERTISEMENT
Origin of QUACK
alteration of queck to quack, from Middle English queken, from queke, interjection, of imitative origin
2quack
noun
3quack
verb
Definition of QUACK
intransitive verb
: to act like a quack
Origin of QUACK
4quack
First Known Use: 1628
4quack
noun
Definition of QUACK
1
: charlatan 2
2
: a pretender to medical skill
— quack·ish \ˈkwa-kish\ adjective
Origin of QUACK
short for quacksalver
First Known Use: 1638
5quack
adjective
Definition of QUACK
: of, relating to, or used by quacks <quack cancer cures>
First Known Use of QUACK
1653
QUACK Defined for Kids
1quack
verb \ˈkwak\
quackedquack·ing
Definition of QUACK for Kids
: to make the cry of a duck
2quack
noun
Definition of QUACK for Kids
: a cry made by a duck
3quack
noun
Definition of QUACK for Kids
: a person who pretends to have medical knowledge and skill
4quack
adjective
Definition of QUACK for Kids
: relating to, being, or used by a person who pretends to have medical skill <a quack doctor> <quack remedies>
Learn More About QUACK
Browse
ADVERTISEMENT
Seen & Heard
What made you want to look up quack? Please tell us where you read or heard it (including the quote, if possible).