holla vs bellowing

holla and bellowing both are nouns.

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

As nouns, holla and bellowing are synonyms defined as:

holla and bellowing: a very loud utterance (like the sound of an animal)

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

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