An area of land from which water drains into a common outlet; drainage basin.
A rock formation scooped out by water erosion.
A wide bowl for washing, sometimes affixed to a wall.
A depression, natural or artificial, containing water.
To serve as or become a basin.
To shelter or enclose in a basin.
To create a concavity or depression in.
An extent of land where water from rain or snow melt drains downhill into a river or series of rivers.