castle
noun
[ ˈkɑːs(ə)l ]
• a large building, typically of the medieval period, fortified against attack with thick walls, battlements, towers, and in many cases a moat.
• "Edinburgh Castle"
Similar:
fortress,
fort,
stronghold,
fortification,
keep,
citadel,
fastness,
tower,
peel,
palace,
chateau,
donjon,
alcazar,
castle
verb
• make a special move (no more than once in a game by each player) in which the king is transferred from its original square two squares along the back rank towards a rook on its corner square which is then transferred to the square passed over by the king.
• "both of the players castled on the queenside"
Origin:
late Old English: from Anglo-Norman French and Old Northern French castel, from Latin castellum, diminutive of castrum ‘fort’.
