donjon

[ duhn-juh n, don- ]
/ ˈdʌn dʒən, ˈdɒn- /

noun

the inner tower, keep, or stronghold of a castle.

Origin of donjon

variant of dungeon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for donjon

donjon

/ (ˈdʌndʒən, ˈdɒn-) /

noun

the heavily fortified central tower or keep of a medieval castleAlso called: dungeon

Word Origin for donjon

C14: archaic variant of dungeon
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