familiarize vs American spelling

familiarize is not a noun while American spelling is a noun.

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

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

familiarize (verb)	American spelling (verb)
make familiar or conversant with