Sump1. (n.) A round pit of stone, lined with clay, for receiving the metal on its first fusion.
2. (n.) The cistern or reservoir made at the lowest point of a mine, from which is pumped the water which accumulates there.
3. (n.) A pond of water for salt works.
4. (n.) A puddle or dirty pool.
Thesaurus Entries
artificial lake, baygall, bayou lake, bog, bottom, bottomland, bottoms, buffalo wallow, cesspool, cistern, cloaca, cloaca maxima, dam, dead water, dike, drain, dump, etang, everglade, farm pond, fen, fenland, fishpond, freshwater lake, garbage dump, glacial lake, glade, gutter, headchute, hog wallow, holm, inland sea, kennel, lagoon, laguna, lake, lakelet, landlocked water, linn, loch, lough, marais, marish, marsh, marshland, meadow, mere, millpond, millpool, mire, moor, moorland, morass, moss, mud, mud flat, nyanza, oxbow lake, peat bog, piscina, plash, pond, pondlet, pool, puddle, quag, quagmire, quicksand, reservoir, salina, salt marsh, salt pond, scupper, septic tank, sewer, sink, slob land, slough, sluice, sough, stagnant water, standing water, still water, swale, swamp, swampland, taiga, tank, tarn, tidal pond, volcanic lake, wallow, wash, water hole, water pocket, well