feed vs stick in

feed is a noun but stick in is not a noun.

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

As verbs, stick in is a hypernym of feed; that is, stick in is a word with a broader meaning than feed:

Other hypernyms of feed include enclose, inclose, insert, introduce, put in.

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

feed (verb)	stick in (verb)
provide with fertilizers or add nutrients to	place, fit, or thrust (something) into another thing
introduce continuously	insert casually
take in food; used of animals only
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