conduit vs duct

conduit and duct both are nouns.

Word	Noun	Adjective	Verb	Adverb
conduit	Yes	No	No	No
duct	Yes	No	No	No

As nouns, duct is a hyponym of conduit; that is, duct is a word with a more specific, narrower meaning than conduit:

conduit: a passage (a pipe or tunnel) through which water or electric wires can pass
duct: an enclosed conduit for a fluid

conduit (noun)	duct (noun)
a passage (a pipe or tunnel) through which water or electric wires can pass	an enclosed conduit for a fluid
	a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
	a continuous tube formed by a row of elongated cells lacking intervening end walls