American spelling vs carbonize

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

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

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

American spelling (verb)	carbonize (verb)
	turn into carbon, as by burning
	unite with carbon