squander vs use up

squander and use up both are verbs.

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

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

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

squander (verb)	use up (verb)
spend extravagantly	use up (resources or materials)
spend thoughtlessly; throw away	require (time or space)