agriculture vs fertilize

agriculture is a noun but fertilize is not a noun.

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

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

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