outfit vs furnish

outfit is a noun but furnish is not a noun.

Word	Noun	Adjective	Verb	Adverb
outfit	Yes	No	Yes	No
furnish	No	No	Yes	No

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

Other hypernyms of outfit include offer, provide, render, supply.

outfit (noun)	furnish (noun)
gear consisting of a set of articles or tools for a specified purpose
a set of clothing (with accessories)
any cohesive unit such as a military company

outfit (verb)	furnish (verb)
provide with (something) usually for a specific purpose	give something useful or necessary to
	provide or equip with furniture