American spelling vs fertilize

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

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

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

American spelling (verb)	fertilize (verb)
	introduce semen into (a female)
	provide with fertilizers or add nutrients to
	make fertile or productive