basin
noun
[ ˈbeɪs(ə)n ]
• a bowl for washing, typically attached to a wall and having taps connected to a water supply; a washbasin.
• a wide open container used for preparing food or for holding liquid.
• "she poured water from the jug into the basin"
• a circular or oval valley or natural depression on the earth's surface, especially one containing water.
• "the loch is cupped in a shallow basin among low hills"
Similar:
valley,
hollow,
gully,
gorge,
ravine,
bed,
channel,
dip,
depression,
concavity,
trough,
Origin:
Middle English: from Old French bacin, from medieval Latin bacinus, from bacca ‘water container’, perhaps of Gaulish origin.