snarl vs vocalization

snarl and vocalization both are nouns.

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

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

Other hypernyms of snarl include utterance.

snarl (noun)	vocalization (noun)
something jumbled or confused	the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
a vicious angry growl	the use of uttered sounds for auditory communication
an angry vicious expression

snarl (verb)	vocalization (verb)
make more complicated or confused through entanglements
utter in an angry, sharp, or abrupt tone
make a snarling noise or move with a snarling noise
twist together or entwine into a confusing mass