sump

/səmp/

/səmp/

Other forms: sumps

Definitions of sump

1. noun

   a well or other hole in which water has collected
   type of:

   well

   a deep hole or shaft dug or drilled to obtain water or oil or gas or brine
2. noun

   a covered cistern; waste water and sewage flow into it
   synonyms: cesspit, cesspool, sink

   type of:

   cistern

   an artificial reservoir for storing liquids; especially an underground tank for storing rainwater
3. noun

   an oil reservoir in an internal combustion engine
   type of:

   reservoir

   tank used for collecting and storing a liquid (as water or oil)