|  sump 
 
 1. an oil reservoir in an internal combustion engine
 • Hypernyms:
 reservoir
 2. a well or other hole in which water has collected
 • Hypernyms:
 well
 3. a covered cistern;
 waste water and sewage flow into it
 • Syn:
 cesspool, cesspit, sink
 • Hypernyms:
 cistern
 
 
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