exclamation vs utterance

exclamation and utterance both are nouns.

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

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

Other hypernyms of exclamation include vocalization.

exclamation (noun)	utterance (noun)
an abrupt excited utterance	the use of uttered sounds for auditory communication
an exclamatory rhetorical device
a loud complaint or protest or reproach