Kata bahasa Indonesia
English word
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
THESAURUS
ROGET THESAURUS
Link, Gadget and Share 
WORDNET DICTIONARY
Noun boo has 1 sense
- boo(n = noun.communication) bird, bronx cheer, hiss, hoot, raspberry, razz, razzing, snort - a cry or noise made to express displeasure or contempt; is a kind of call, cry, outcry, shout, vociferation, yell
Derived form verb boo1
Verb boo has 1 sense
- boo(v = verb.communication) hiss - show displeasure, as after a performance or speech; is one way to condemn
Antonym: applaud
Derived form noun boo1
Sample sentences:
Somebody ----s
Somebody ----s somebody
Somebody ----s PP
CIDE DICTIONARY
boo, v.
to show displeasure (after a performance or speech) by making a prolonged sound of “boo”. [WordNet 1.5]
OXFORD DICTIONARY
boo, int., n., & v.
--int.
1 an expression of disapproval or contempt.
2 a sound, made esp. to a child, intended to surprise.
--n. an utterance of boo, esp. as an expression of disapproval or contempt made to a performer etc.
--v. (boos, booed)
1 intr. utter a boo or boos.
2 tr. jeer at (a performer etc.) by booing.
--int.
1 an expression of disapproval or contempt.
2 a sound, made esp. to a child, intended to surprise.
--n. an utterance of boo, esp. as an expression of disapproval or contempt made to a performer etc.
--v. (boos, booed)
1 intr. utter a boo or boos.
2 tr. jeer at (a performer etc.) by booing.
Idiom
can't (or wouldn't) say boo to a goose is very shy or timid.
Etymology
imit.