castle

/ˈkæsəl/
verb
  1. In chess, to move the king two squares toward a rook and then move the rook to the square next to the king on the opposite side.
    • She castled early in the game to protect her position.
    • You can only castle if neither the king nor the rook has moved yet.
    • He decided to castle to keep his king safe.
noun
  1. A large, strong building built in the past to protect the people inside from attack.
    • Tourists visited the old castle to see the towers and the moat.
    • The children built a sand castle on the beach.
    • The king lived in a huge stone castle on the hill.
  2. In chess, one of the two pieces shaped like a small tower, also called a rook.
    • He moved his castle to protect the king.
    • You should not lose your castle early in the game.
    • She captured my castle with her bishop.
Synonyms
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