American spelling vs fluoridization

American spelling and fluoridization both are nouns.

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

American spelling (noun)	fluoridization (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	the addition of a fluoride to the water supply (to prevent dental decay)