dungeon

plural dungeons

1. An underground prison or vault, typically built underneath a castle.

   Year after year he lay patiently in a dungeon.

   1911, Thomas Babington Macaulay, “Bunyan, John”, in 1911 Encyclopædia Britannica

   1 more example

   They could still hear him for some time shouting out things about having the law of them while being bounced down to the deepest dungeon of the castle.

   1936, Norman Lindsay, The Flyaway Highway, Sydney: Angus and Robertson, page 84

2. The low area between two drumlins.
3. obsoleteThe main tower of a motte or castle; a keep or donjon.
4. obsoleteA shrewd person.
5. roleplaying gamesAn area inhabited by enemies, containing story objectives, treasure, and bosses.
6. BDSMA room dedicated to sadomasochistic sexual activity.

present singular third person dungeons · participle present dungeoning · participle past dungeoned · past dungeoned

1. transitiveTo imprison in a dungeon.

   Of every act of severity, of every bold violation of the constitution, of every bill for dungeoning and gagging the people, of every tax, of every loan, of all that set frugality at defiance, and that mocked at mercy, these men had been either the authors or the most strenuous supporters […]

   1830, William Cobbett, History of the Regency and Reign of King George the Fourth