American spelling vs oxidization

American spelling and oxidization both are nouns.

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

American spelling (noun)	oxidization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction