Basin
WordNet
noun
(1) A bowl-shaped vessel; usually used for holding food or liquids
"She mixed the dough in a large basin"
(2) A bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face
"He ran some water in the basin and splashed it on his face"
(3) The entire geographical area drained by a river and its tributaries
"Flood control in the Missouri basin"
(4) A natural depression in the surface of the land often with a lake at the bottom of it
"The basin of the Great Salt Lake"
(5) The quantity that a basin will hold
"A basinful of water"