American spelling vs vocalization

American spelling and vocalization both are nouns.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
vocalization	Yes	No	No	No

American spelling (noun)	vocalization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	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