fertilize vs dung

fertilize is not a noun while dung is a noun.

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

As verbs, dung is a hyponym of fertilize; that is, dung is a word with a more specific, narrower meaning than fertilize:

Other hyponyms of fertilize include nitrify, topdress.

fertilize (noun)	dung (noun)
	fecal matter of animals

fertilize (verb)	dung (verb)
introduce semen into (a female)	defecate; used of animals
provide with fertilizers or add nutrients to	fertilize or dress with dung
make fertile or productive