spend vs eat up

spend and eat up both are verbs.

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

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

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

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

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

spend (verb)	eat up (verb)
pay out	finish eating all the food on one's plate or on the table
spend completely	use up (resources or materials)
use up a period of time in a specific way	enclose or envelop completely, as if by swallowing