expostulation vs exclamation

expostulation and exclamation both are nouns.

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

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

Other hypernyms of expostulation include exclaiming.

expostulation (noun)	exclamation (noun)
the act of expressing earnest opposition or protest	an abrupt excited utterance
an exclamation of protest or remonstrance or reproof	an exclamatory rhetorical device
	a loud complaint or protest or reproach