hollering vs bellow

hollering and bellow both are nouns.

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

As nouns, hollering and bellow are synonyms defined as:

hollering and bellow: a very loud utterance (like the sound of an animal)

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

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

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