American spelling vs colonize

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

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

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

American spelling (verb)	colonize (verb)
	settle as colonists or establish a colony (in)
	settle as a colony; of countries in the developing world