familiarizing vs American spelling

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

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

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

familiarizing (adjective)	American spelling (adjective)
serving to make familiar