holla vs bellow

holla and bellow both are nouns.

Word	Noun	Adjective	Verb	Adverb
holla	Yes	No	No	No
bellow	Yes	No	Yes	No

As nouns, holla and bellow are synonyms defined as:

Other synonyms of holla include bellowing, holler, hollering, hollo, holloa, roar, roaring, yowl.

holla (noun)	bellow (noun)
a very loud utterance (like the sound of an animal)	a very loud utterance (like the sound of an animal)

holla (verb)	bellow (verb)
	shout loudly and without restraint
	make a loud noise, as of animal