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Definition of “boo” - English Dictionary

"boo" in American English

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booverb [I/T]

 us   /bu/ (present tense boos, present participle booing, past tense and past participle booed)
  • boo verb [I/T] (DISAPPROVE)

to call out the word "boo" to express disapproval: [T] They booed him off the stage.
boo
noun [C]  us   /bu/ (plural boos)
Students showed their dislike with a chorus of boos.

booexclamation

 us   /bu/
  • boo exclamation (SURPRISE)

used to surprise or frighten another person, and usually said loudly: He snuck up behind me and said, "Boo!"
(Definition of boo from the Cambridge Academic Content Dictionary © Cambridge University Press)







"boo" in British English

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booverb [I or T]

uk   /buː/  us   /buː/ (present participle booing, past tense and past participle booed)
to make an expression of strong disapproval or disagreement: People at the back started booing loudly. Her singing was so bad that she was booed off the stage.

boonoun [C]

uk   /buː/  us   /buː/ (plural boos)
the act of booing

booexclamation

uk   /buː/  us   /buː/
(Definition of boo from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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