ionize vs American spelling

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

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

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

ionize (verb)	American spelling (verb)
convert into ions
become converted into ions