American spelling vs denaturalize

American spelling is a noun but denaturalize is not a noun.

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

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

American spelling (verb)	denaturalize (verb)
	strip of the rights and duties of citizenship
	make less natural or unnatural