sump

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. A hollow or pit into which liquid drains, such as a [[cesspool]], [[cesspit]] or [[sink]].
2. The lowest part of a [[mineshaft]] into which [[water]] [[drains]].
3. A completely flooded [[cave]] passage, sometimes passable by diving.
4. {{lb|en|automotive}} The [[crankcase]] or oil [[reservoir]] of an [[internal combustion engine]].
5. {{lb|en|nautical}} The [[pit]] at the lowest point in a [[circulation|circulating]] or [[drainage]] system (FM 55-501).
6. {{lb|en|construction}} An intentional depression around a drain or [[scupper]] that promotes drainage.
7. {{lb|en|Scotland}} A sudden or heavy [[fall]] of [[rain]]; a [[deluge]].

Verb

1. {{lb|en|intransitive}} Of a cave passage, to end in a sump, or to fill completely with water on occasion.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.