feed vs fertilize

feed is a noun but fertilize is not a noun.

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

As verbs, feed and fertilize are synonyms defined as:

Other synonyms of feed include fertilise.

feed (noun)	fertilize (noun)
food for domestic livestock

feed (verb)	fertilize (verb)
provide with fertilizers or add nutrients to	introduce semen into (a female)
introduce continuously	provide with fertilizers or add nutrients to
take in food; used of animals only	make fertile or productive
give food to
serve as food for; be the food for
feed into; supply
provide as food
gratify
profit from in an exploitatory manner
move along, of liquids
support or promote