put in vs feed

put in is not a noun while feed is a noun.

Word	Noun	Adjective	Verb	Adverb
put in	No	No	Yes	No
feed	Yes	No	Yes	No

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

put in (noun)	feed (noun)
	food for domestic livestock

put in (verb)	feed (verb)
place, fit, or thrust (something) into another thing	provide with fertilizers or add nutrients to
break into a conversation	introduce continuously
to insert between other elements	take in food; used of animals only
make an application as for a job or funding	give food to
set up for use	serve as food for; be the food for
keep or lay aside for future use	feed into; supply
	provide as food
	gratify
	profit from in an exploitatory manner
	move along, of liquids
	support or promote