/ Thesaurus Find synonyms for: Noun1. cisterna, cistern, sacusage: a sac or cavity containing fluid especially lymph or cerebrospinal fluid2. cistern, water tank, tank, storage tankusage: a tank that holds the water used to flush a toilet3. cistern, reservoir, poolusage: an artificial reservoir for storing liquids; especially an underground tank for storing rainwaterWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: cistern (Dictionary) Related Content Daily Word Quiz: chicory Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index