
1) Castle keep 2) Castle stronghold 3) Castle tower 4) Dungeon 5) Fantasy role-playing game 6) Fastness 7) Keep 8) Stronghold
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https://www.crosswordclues.com/clue/donjon

1) Dungeon 2) Keep 3) Prison
Found on
https://www.crosswordclues.com/clue/donjon
[role-playing game] Donjon (French for keep) is an independently published role-playing game by Clinton R. Nixon, published by Anvilwerks. ==History== Donjon, a narrative dungeon crawl by Clinton R. Nixon, was one of the indie role-playing games that appeared in the months following the casual gathering of indie enthusiasts at the booth for...
Found on
http://en.wikipedia.org/wiki/Donjon_(role-playing_game)

A great tower or keep.
Found on
http://great-castles.com/glossary.php

• (n.) The chief tower, also called the keep; a massive tower in ancient castles, forming the strongest part of the fortifications. See Illust. of Castle.
Found on
http://thinkexist.com/dictionary/meaning/donjon/

keep or great tower, the main citadel of a castle
Found on
http://www.castles-of-britain.com/glossary.htm

A great tower or keep.
Found on
http://www.castlesontheweb.com/glossary.html

A great tower or keep.
Found on
http://www.encyclo.co.uk/local/20018

another name for a great tower or keep
Found on
http://www.encyclo.co.uk/local/22129

Large main building of a medieval castle. Keep is an alternative name for donjon, particularly widely used down to the 12th century.
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http://www.encyclo.co.uk/visitor-contributions.php
Don'jon (dŭn'jŭn)
noun [ See
Dungeon .] The chief tower, also called the
keep ; a massive tower in ancient castles, forming the strongest part of the fortifications. See
Illust. of
Castle .
Found on
http://www.encyclo.co.uk/webster/D/110

A donjon is the principal tower of a castle, situated in the innermost court or bailey, which the garrison could make the last line of defence. Its lower part was commonly used as a prison.
Found on
http://www.probertencyclopaedia.com/browse/FD.HTM

A donjon is the grand central tower or keep of a Norman or mediaeval castle, frequently raised on an artificial elevation. It was the strongest portion of the building, a high square tower with walls of enormous thickness usually detached from the surround buildings by an open space walled, called the Inner Bailey, and another beyond called the Out...
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http://www.probertencyclopaedia.com/browse/TD.HTM

Castle keeps, popular in the later 16th Century. The first castle keep was built by Matsunaga Hisahide in 1567 at Tamon. Donjons were ultimately designed as much for appearance as defensive capability.
Found on
http://www.samurai-archives.com/vocab.html

another name for a great tower or keep
Found on
https://www.encyclo.co.uk/local/20402

The principal tower of a castle.
Found on
https://www.encyclo.co.uk/local/20687

the inner tower, keep, or stronghold of a castle.
Found on
https://www.infoplease.com/dictionary/donjon
No exact match found.