- cisterna, cistern - a sac or cavity containing fluid especially lymph or cerebrospinal fluid
--1 is a kind of sac
- cistern, water tank - a tank that holds the water used to flush a toilet
--2 is a kind of tank, storage tank
- cistern - an artificial reservoir for storing liquids; especially an underground tank for storing rainwater
--3 is a kind of reservoir; pool
--3 has particulars: cesspool, cesspit, sink, sump; rain barrel