Bronx cheer vs boo

Bronx cheer and boo both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bronx cheer	Yes	No	No	No
boo	Yes	No	Yes	No

As nouns, Bronx cheer and boo are synonyms defined as:

Bronx cheer and boo: a cry or noise made to express displeasure or contempt

Other synonyms of Bronx cheer include bird, hiss, hoot, raspberry, razz, razzing, snort.

Bronx cheer (noun)	boo (noun)
a cry or noise made to express displeasure or contempt	a cry or noise made to express displeasure or contempt

Bronx cheer (verb)	boo (verb)
	show displeasure, as after a performance or speech