unionize vs American spelling

unionize is not a noun while American spelling is a noun.

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

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

unionize (verb)	American spelling (verb)
form or join a union
recruit for a union or organize into a union