naturalize vs American spelling

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

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

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

naturalize (verb)	American spelling (verb)
make into a citizen
make more natural or lifelike
adopt to another place
adapt (a wild plant or unclaimed land) to the environment
explain with reference to nature