flue vs conduit

flue and conduit both are nouns.

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

As nouns, conduit is a hypernym of flue; that is, conduit is a word with a broader meaning than flue:

flue: a conduit to carry off smoke
conduit: a passage (a pipe or tunnel) through which water or electric wires can pass

flue (noun)	conduit (noun)
a conduit to carry off smoke	a passage (a pipe or tunnel) through which water or electric wires can pass
organ pipe whose tone is produced by air passing across the sharp edge of a fissure or lip
flat bladelike projection on the arm of an anchor