Basin

Noun

 * 1) A bowl for washing, often affixed to a wall.
 * 2)  An area of water that drains into a river.
 * 3)  A rock formation scooped out by water erosion.

Adjectives for Basin
remarkable; treeless; shallow; vast; starlit; drainage; rock-bottomed; tidal; empty; volcanic; gigantic; rustic; beautiful; incrusted; weedy; marshy; natural; fan-shaped; broad; spacious; sumptuous.

Thesaurus
alkali flat, alluvial plain, alveolation, alveolus, anchorage, anchorage ground, antrum, aquamanile, armpit, automatic dishwasher, bath, bathtub, bed, berth, bidet, bottom, bottomland, bowl, breakwater, bulkhead, bushveld, campo, catch basin, cavity, cereal bowl, champaign, champaign country, channel, cistern, coastal plain, concave, concavity, coulee, crater, crypt, cup, delta, depression, desert, dip, dishpan, dishwasher, dock, dockage, dockyard, down, downs, dry dock, embankment, ewer, fell, finger bowl, flat, flat country, flatland, flats, floor, fold, follicle, funnel chest, grass veld, grassland, gravy boat, groin, ground, harbor, harborage, haven, heath, hip bath, hole, hollow, hollow shell, jetty, jutty, kitchen sink, lacuna, lande, landing, landing place, landing stage, lavabo, lavatory, level, llano, lowland, lowlands, lunar mare, mare, marina, mesa, mesilla, mole, moor, moorings, moorland, ocean bottom, open country, pampa, pampas, peneplain, pier, piscina, pit, plain, plains, plateau, playa, pocket, porringer, port, prairie, protected anchorage, punch bowl, quay, road, roads, roadstead, sag, salad bowl, salt flat, salt marsh, salt pan, sauce boat, savanna, scoop, seaport, seawall, sebkha, shell, shipyard, shower, shower bath, shower curtain, shower head, shower room, shower stall, showers, sink, sinkage, sinkhole, sinus, sitz bath, slip, socket, steppe, table, tableland, terrine, tree veld, trough, tub, tundra, tureen, upland, vat, vega, veld, vug, wash barrel, wash boiler, washbasin, washbowl, washdish, washer, washing machine, washing pot, washpot, washstand, washtub, weald, wharf, wide-open spaces, wold

Etymology
From basin:, from  bacin:, from  baccinum:, from  bacca: 'wine jug', from  (compare  baich: 'load, burden',  bac: 'hindrance').

Synonyms

 * sink

Derived terms

 * basin of attraction
 * catchment basin
 * drainage basin
 * oceanic basin
 * sedimentary basin