hoot vs boo

hoot and boo both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoot	Yes	No	Yes	No
boo	Yes	No	Yes	No

As nouns, hoot and boo are synonyms defined as:

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

hoot (noun)	boo (noun)
something of little value	a cry or noise made to express displeasure or contempt
a loud raucous cry (as of an owl)
a cry or noise made to express displeasure or contempt

hoot (verb)	boo (verb)
to utter a loud clamorous shout	show displeasure, as after a performance or speech
utter the characteristic sound of owls