misuse vs eat

misuse is a noun but eat is not a noun.

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

As verbs, eat is a hypernym of misuse; that is, eat is a word with a broader meaning than misuse:

Other hypernyms of misuse include consume, deplete, eat up, exhaust, expend, run through, use, use up, wipe out.

misuse (noun)	eat (noun)
improper or excessive use

misuse (verb)	eat (verb)
change the inherent purpose or function of something	cause to deteriorate due to the action of water, air, or an acid
apply to a wrong thing or person; apply badly or incorrectly	take in solid food
	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