boo
interjectionDefinition of boo
(Entry 1 of 3)
—used to express contempt or disapproval or to startle or frighten
boo
noun
plural boos
Definition of boo (Entry 2 of 3)
1
: a shout of disapproval or contempt
2
: any utterance at all
—usually used in negative constructions never said boo
boo
verb
booed;
booing;
boos
Definition of boo (Entry 3 of 3)
: to deride especially by uttering a prolonged boo
: to express disapproval of by booing
the crowd booed the referee
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