American spelling vs optimize

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

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

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

American spelling (verb)	optimize (verb)
	act as an optimist and take a sunny view of the world
	make optimal; get the most out of; use best
	modify to achieve maximum efficiency in storage capacity or time or cost