American spelling vs authorize

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

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

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

American spelling (verb)	authorize (verb)
	grant authorization or clearance for
	give or delegate power or authority to