sputter vs utterance

sputter and utterance both are nouns.

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

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

Other hypernyms of sputter include vocalization.

sputter (noun)	utterance (noun)
an utterance (of words) with spitting sounds (as in rage)	the use of uttered sounds for auditory communication
the noise of something spattering or sputtering explosively

sputter (verb)	utterance (verb)
spit up in an explosive manner
cause to undergo a process in which atoms are removed
utter with a spitting sound, as if in a rage
climb awkwardly, as if by scrambling
make an explosive sound