basin
ba-sin
noun
A wide, round, open container, often fixed, for washing or holding liquid.
"She filled the basin with warm water."
noun
A large, natural hollow or depression in the earth's surface.
"The river flows through a fertile basin."
Thesaurus
Synonyms: basinful, washbasin, washbowl, washstand, lavatory, watershed, drainage basin, catchment basin, river basin, catchment area, drainage area