use up vs eat

use up and eat both are verbs.

Word	Noun	Adjective	Verb	Adverb
use up	No	No	Yes	No
eat	No	No	Yes	No

As verbs, use up and eat are synonyms defined as:

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

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

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

use up (verb)	eat (verb)
use up (resources or materials)	cause to deteriorate due to the action of water, air, or an acid
require (time or space)	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