eat vs graze

eat is not a noun while graze is a noun.

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

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

Other hyponyms of eat include forage, raven, suckle, browse, crop, pasture, range.

eat (noun)	graze (noun)
	the act of grazing
	a superficial abrasion

eat (verb)	graze (verb)
cause to deteriorate due to the action of water, air, or an acid	eat lightly, try different dishes
take in solid food	scrape gently
eat a meal; take a meal	feed as in a meadow or pasture
take in food; used of animals only	break the skin (of a body part) by scraping
use up (resources or materials)	let feed in a field or pasture or meadow
worry or cause anxiety in a persistent way