feed vs scavenge

feed is a noun but scavenge is not a noun.

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

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

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

feed (verb)	scavenge (verb)
provide with fertilizers or add nutrients to	remove unwanted substances from
introduce continuously	feed on carrion or refuse
take in food; used of animals only	clean refuse from
give food to	collect discarded material
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