eat up vs consume

eat up and consume both are verbs.

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

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

Other hyponyms of eat up include put away, tuck away, tuck in, demolish, devour, down, go through.

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

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

eat up (verb)	consume (verb)
finish eating all the food on one's plate or on the table	engage fully
use up (resources or materials)	serve oneself to, or consume regularly
enclose or envelop completely, as if by swallowing	use up (resources or materials)
	spend extravagantly
	eat up completely, as with great appetite
	destroy completely