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A "sump" is...
1 : a pit or reservoir serving as a drain or receptacle for liquids: as a : CESSPOOL b : a pit at the lowest point in a circulating or drainage system (as the oil-circulating system of an internal combustion engine) c chiefly British : OIL PAN
2 British : CRANKCASE
3 [German Sumpf, literally, marsh, from Middle High German] a : the lowest part of a mine shaft into which water drains b : an excavation ahead of regular work in driving a mine tunnel or sinking a mine shaft
4 : something resembling a sump : SINK
Good luck from Oso ¶:^)
xxxOso Native speaker of: Spanish PRO pts in pair: 3064