flue

nouns

flat bladelike projection on the arm of an anchor
flue, fluke
organ pipe whose tone is produced by air passing across the sharp edge of a fissure or lip
flue, flue pipe, labial pipe
a conduit to carry off smoke
flue
is a type of (narrower)
a passage (a pipe or tunnel) through which water or electric wires can pass
"the computers were connected through a system of conduits"
conduit