a small stream

stream of water

a long, wide waterfall

something falling, especially water

a stretch of water joining two seas

pathway, usually containing water

a narrow inlet of water on the coast or in a river-bank

stream of water

a ditch (used for carrying away water from land)

embankment

a deep, long channel dug in or between fields, at the sides of a road etc, used to hold or carry off water

gulley

a pipe, channel etc used for carrying away water, sewage and other unwanted liquids

channel through which liquid runs off

a thin tube through which liquid in the body flows; a tube, outlet, for air (e.g. in a plane)

channel, pipe

dike

embankment

a narrow channel cut or formed by rainwater, e.g. on a hillside, or for carrying water away from a building

ravine, ditch

a long semi-circular pipe fixed under the edge of a roof to carry away rainwater; a long deep channel at the side of a road for rainwater

ditch

a large, natural flow of water to the sea or to a lake, or joining another river

waterway

a very small river; a steady flow (of liquid, people, things)

small river

a kind of long, open box used for animals to feed or drink from; a region of lower atmospheric pressure between two regions of higher pressure

gutter, depression