sputter vs vocalization

sputter and vocalization both are nouns.

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

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

Other hypernyms of sputter include utterance.

sputter (noun)	vocalization (noun)
an utterance (of words) with spitting sounds (as in rage)	the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
the noise of something spattering or sputtering explosively	the use of uttered sounds for auditory communication

sputter (verb)	vocalization (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