canal vs furnish

canal is a noun but furnish is not a noun.

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

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

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

canal (noun)	furnish (noun)
long and narrow strip of water made for boats or for irrigation
a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
(astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion

canal (verb)	furnish (verb)
provide (a city) with a canal	give something useful or necessary to
	provide or equip with furniture