vocalization vs vocalize

vocalization is a noun but vocalize is not a noun.

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

vocalization (noun)	vocalize (noun)
the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
the use of uttered sounds for auditory communication

vocalization (verb)	vocalize (verb)
	pronounce as a vowel
	express or state clearly
	utter with vibrating vocal chords
	utter speech sounds
	sing (each note a scale or in a melody) with the same vowel