An artificial channel that is constructed to convey water from one location to another.
A structure carrying water over a river or depression, especially in regards to ancient aqueducts.
A structure conveying fluid, such as the cerebral aqueduct or vestibular aqueduct.
A body of water, such as a river, channel or canal, that is navigable.
A conduit or watercourse, such as on the deck of a ship, to drain water.