castle

A large, strong building with thick walls, built to protect its residents from attack.

• We visited an old castle.
• The castle stands on a hill.
• Thick walls protected the people inside the castle.

Similar words: fortress

Common phrases: medieval castle, castle walls, ruined castle

The chess piece that looks like a tower and moves in straight lines.

• Move your castle forward.
• She captured my castle with her queen.
• Each player starts with two castles.

Similar words: rook

Common phrases: move a castle, white castle, capture a castle

To move your king and one rook together in a special chess move.

• You can castle now.
• She castled to protect her king.
• Can I castle if my king has already moved?

Common phrases: castle early, castle kingside, castle queenside