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Definitions by Wordnik

  1. (noun) A low-lying place, such as a pit, that receives drainage.
  2. (noun) A cesspool.
  3. (noun) A hole at the lowest point of a mine shaft into which water is drained in order to be pumped out.
  4. (noun) The crankcase or oil reservoir of an internal-combustion engine.

Examples by Wordnik

  1. Also, the sump was an above hole pump so it meant cutting the cap to fit the pipes in and sealing it with a couple of tubes of silicone. - Projects You Shouldn’t Try To DIY | Lifehacker Australia
  2. In the winter Francis had sat in the utility room downstairs, in the corner of the room called the sump area, a dugout rough and rusty looking, where the pipes all meet in vertical poles. - Animals in Reverse
  3. The car and all its parts are original - even the oil in the sump is the very same as from 20 years ago. - Home
  4. Any openings in the basement floor must also be sealed, such as sump baskets and bathtub drains. - Reuben's Home Inspection Blog - Part 2
  5. I was fine climbing into the lake up to chest level, and edging into the crevice leading to what was described to me as a "sump" (a short submerged passage) but what I hadn't realized was that getting into the sump required getting my body through a narrow space with not one but two projecting chert ridges. - a day without a bruise is wasted.


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