exclaim vs shout

exclaim is not a noun while shout is a noun.

Word	Noun	Adjective	Verb	Adverb
exclaim	No	No	Yes	No
shout	Yes	No	Yes	No

As verbs, exclaim and shout are synonyms defined as:

Other synonyms of exclaim include call out, cry, cry out, outcry.

exclaim (noun)	shout (noun)
	a loud utterance; often in protest or opposition

exclaim (verb)	shout (verb)
utter aloud; often with surprise, horror, or joy	utter in a loud voice; talk in a loud voice (usually denoting characteristic manner of speaking)
state or announce	utter a sudden loud cry
	utter aloud; often with surprise, horror, or joy
	use foul or abusive language towards