Exact Match:
- castle
- interchanging the positions of the king and a rook
- a large building formerly occupied by a ruler and fortified against attack
- (chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard
- move the king two squares toward a rook and in the same move the rook to the square next past the king
Synonyms:
- acropolis,
- bastion,
- beachhead,
- bishop,
- blockhouse,
- bridgehead,
- bunker,
- chateau,
- chessman,
- citadel,
- court,
- donjon,
- fasthold,
- fastness,
- fort,
- fortress,
- garrison,
- garrison house,
- hall,
- hold,
- keep,
- king,
- knight,
- man,
- manor,
- mansion,
- martello,
- martello tower,
- mote,
- motte,
- palace,
- palais,
- palatial residence,
- palazzo,
- pawn,
- peel,
- peel tower,
- piece,
- pillbox,
- post,
- queen,
- rath,
- rook,
- safehold,
- strong point,
- stronghold,
- tower,
- tower of strength,
- villa,
- ward