American spelling vs customize

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

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

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

American spelling (verb)	customize (verb)
	make according to requirements
	make to specifications