Definition of boo
—used to express contempt or disapproval or to startle or frighten
From the M-W Editors
Origin and Etymology of boo
Middle English bo
boo
Definition of boo
boos
1 : a shout of disapproval or contempt
2 : any utterance at all —usually used in negative constructions never said boo
Examples of boo in a Sentence
A chorus of boos was heard after the shot missed the goal.
The announcement was greeted by a mixture of boos and cheers.
First Known Use of boo
1801
boo
Definition of boo
intransitive verb
: to deride especially by uttering a prolonged boo
transitive verb
: to express disapproval of by booing the crowd booed the referee
Examples of boo in a Sentence
Many people in the crowd booed when the announcement was made.
Many people in the crowd booed the announcement, but a few people cheered it.
First Known Use of boo
1833
BOO Defined for English Language Learners
boo
Definition of boo for English Language Learners
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: a sound that people make to show they do not like or approve of someone or something
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: any sound at all
boo
Definition of boo for English Language Learners
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: to show dislike or disapproval of someone or something by shouting “Boo” slowly
BOO Defined for Kids
Definition of boo for Students
—used to express disapproval or to startle or frighten
Learn More about boo
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See words that rhyme with boo Thesaurus: All synonyms and antonyms for boo Spanish Central: Translation of boo Nglish: Translation of boo for Spanish speakers Britannica English: Translation of boo for Arabic speakers
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