boo Meaning in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “boo” in the English Dictionary

"boo" in British English

See all translations

booverb [I or T]

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

boonoun [C]

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

booexclamation

uk   us   /buː/
an ​expression, usually ​shouted, used to ​surprise and ​frighten someone who does not ​know you are near them : She ​jumped out of the ​cupboard and ​shouted "Boo!"
(Definition of boo from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"boo" in American English

See all translations

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 ​expressdisapproval: [T] They booed him off the ​stage.
boo
noun [C]  us   /bu/ (plural boos)
Students ​showedtheirdislike 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)
What is the pronunciation of boo?