noun
1. a bowl-shaped vessel
usually used for holding food or liquids
e.g. 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
e.g. he ran some water in the basin and splashed it on his face
Synonym: washbasinwashbowlwashstandlavatory
3. the entire geographical area drained by a river and its tributaries
an area characterized by all runoff being conveyed to the same outlet
e.g. flood control in the Missouri basin
Synonym: river basinwatersheddrainage basincatchment areacatchment basindrainage area
4. a natural depression in the surface of the land often with a lake at the bottom of it
e.g. the basin of the Great Salt Lake
5. the quantity that a basin will hold
e.g. a basinful of water
Synonym: basinful