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English definition of “boo”

boo

verb [I, T]
 
 
/buː/ (present participle booing, past tense and past participle booed)
to shout the word "boo" to show that you do not like a speech, performance, etcDisapproving and criticizingDamaging reputation
boo noun [C]
(Definition of boo from the Cambridge Learners Dictionary © Cambridge University Press)
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