fertilize vs American spelling

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

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

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

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