stock up vs furnish

stock up and furnish both are verbs.

Word	Noun	Adjective	Verb	Adverb
stock up	No	No	Yes	No
furnish	No	No	Yes	No

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

stock up: amass so as to keep for future use or sale or for a particular occasion or use
furnish: give something useful or necessary to

Other hypernyms of stock up include offer, provide, render, supply.

stock up (verb)	furnish (verb)
amass so as to keep for future use or sale or for a particular occasion or use	give something useful or necessary to
	provide or equip with furniture