quack
/kwæk/ verb C2- To practice or commit quackery (fraudulent medicine).
He/she/it quacks · Past quacked · Past participle quacked · -ing form quacking
Verb forms
- Base form
- quack
- He/she/it
- quacks
- Past
- quacked
- Past participle
- quacked
- -ing form
- quacking
From the library
## The Quack Frog
Other matches
Learn quack in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.