yelling vs shouting

yelling and shouting both are nouns.

Word	Noun	Adjective	Verb	Adverb
yelling	Yes	No	No	No
shouting	Yes	No	No	No

As nouns, yelling and shouting are synonyms defined as:

yelling and shouting: uttering a loud inarticulate cry as of pain or excitement

yelling (noun)	shouting (noun)
uttering a loud inarticulate cry as of pain or excitement	encouragement in the form of cheers from spectators
	uttering a loud inarticulate cry as of pain or excitement