dungeon

[ duhn-juh n ]
/ ˈdʌn dʒən /

noun

a strong, dark prison or cell, usually underground, as in a medieval castle.
the keep or stronghold of a castle; donjon.

Origin of dungeon

1250–1300; Middle English dungeo(u)n, dongeoun, dungun < Middle French donjon < Vulgar Latin *domniōn- (stem of *domniō) keep, mastery, syncopated variant of *dominiōn- dominion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dungeon

British Dictionary definitions for dungeon

dungeon

/ (ˈdʌndʒən) /

noun

a close prison cell, often underground
a variant of donjon

Word Origin for dungeon

C14: from Old French donjon; related to Latin dominus master
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012