vociferation vs utterance

vociferation and utterance both are nouns.

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

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

Other hypernyms of vociferation include vocalization.

vociferation (noun)	utterance (noun)
a loud utterance; often in protest or opposition	the use of uttered sounds for auditory communication