buy in vs furnish

buy in and furnish both are verbs.

Word	Noun	Adjective	Verb	Adverb
buy in	No	No	Yes	No
furnish	No	No	Yes	No

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

buy in: 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 buy in include offer, provide, render, supply.

buy in (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