boo
/buː/ interjection B1- A loud exclamation intended to scare someone. Usually used when one has been hidden from the target, and then appears unexpectedly. Often used in playful or jokeful context.
- An exclamation used by a member of an audience, as at a stage play or sporting event, to indicate derision or disapproval.
Phrasal verbs and expressions
Other matches
Learn boo 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.