sluiceway vs conduit

sluiceway and conduit both are nouns.

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

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

sluiceway: conduit that carries a rapid flow of water controlled by a sluicegate
conduit: a passage (a pipe or tunnel) through which water or electric wires can pass

sluiceway (noun)	conduit (noun)
conduit that carries a rapid flow of water controlled by a sluicegate	a passage (a pipe or tunnel) through which water or electric wires can pass