fertilize vs agriculture

fertilize is not a noun while agriculture is a noun.

Word	Noun	Adjective	Verb	Adverb
fertilize	No	No	Yes	No
agriculture	Yes	No	No	No

fertilize (noun)	agriculture (noun)
	the practice of cultivating the land or raising stock
	a large-scale farming enterprise
	the class of people engaged in growing food

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