tool vs furnish

tool is a noun but furnish is not a noun.

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

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

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

tool (noun)	furnish (noun)
the means whereby some act is accomplished
an implement used in the practice of a vocation
obscene terms for penis
a person who is controlled by others and is used to perform unpleasant or dishonest tasks for someone else

tool (verb)	furnish (verb)
work with a tool	give something useful or necessary to
ride in a car with no particular goal and just for the pleasure of it	provide or equip with furniture
drive
furnish with tools