shouter vs screamer

shouter and screamer both are nouns.

Word	Noun	Adjective	Verb	Adverb
shouter	Yes	No	No	No
screamer	Yes	No	No	No

As nouns, shouter and screamer are synonyms defined as:

shouter and screamer: someone who communicates vocally in a very loud voice

Other synonyms of shouter include bawler, bellower, roarer, screecher, yeller.

shouter (noun)	screamer (noun)
someone who communicates vocally in a very loud voice	a very hard hit ball
	gooselike aquatic bird of South America having a harsh trumpeting call
	a sensational newspaper headline
	someone who communicates vocally in a very loud voice