An area from which water drains into a particular lake, river, etc.; the catchment area of a large river includes its tributaries.
The area served by a local institution, such as a hospital or school, or by extension, a railway station.
A sluice used in returning water to a channel after depositing its sediment on the flooded land.
A narrow valley; a cleft in a hillside; a ravine, glen, or gorge.
The cleft or fork of a tree; crotch.
A wood; weald.