eat vs fare

eat is not a noun while fare is a noun.

Word	Noun	Adjective	Verb	Adverb
eat	No	No	Yes	No
fare	Yes	No	Yes	No

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

eat (noun)	fare (noun)
	an agenda of things to do
	the food and drink that are regularly served or consumed
	a paying (taxi) passenger
	the sum charged for riding in a public conveyance

eat (verb)	fare (verb)
cause to deteriorate due to the action of water, air, or an acid	eat well
take in solid food	proceed or get along
eat a meal; take a meal
take in food; used of animals only
use up (resources or materials)
worry or cause anxiety in a persistent way