interjection vs exclamation

interjection and exclamation both are nouns.

Word	Noun	Adjective	Verb	Adverb
interjection	Yes	No	No	No
exclamation	Yes	No	No	No

As nouns, exclamation is a hypernym of interjection; that is, exclamation is a word with a broader meaning than interjection:

Other hypernyms of interjection include exclaiming.

interjection (noun)	exclamation (noun)
the action of interjecting or interposing an action or remark that interrupts	an abrupt excited utterance
an abrupt emphatic exclamation expressing emotion	an exclamatory rhetorical device
	a loud complaint or protest or reproach