Definition of "Basin" :

noun: a bowl-shaped vessel; usually used for holding food or liquids

"She mixed the dough in a large basin."

noun: 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."

noun: the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet

"Flood control in the Missouri basin."

noun: 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."

noun: the quantity that a basin will hold

"A basinful of water."