Meaning

• Noun

  1. A large residential building or compound that is fortified and contains many defences; in previous ages often inhabited by a nobleman or king. Also, a house or mansion with some of the architectural features of medieval castles.
  2. An instance of castling.
  3. (informal) A rook; a chess piece shaped like a castle tower.
  4. A defense structure in shogi formed by defensive pieces surrounding the king.
  5. (obsolete) A close helmet.
  6. Any strong, imposing, and stately palace or mansion.
  7. A small tower, as on a ship, or an elephant's back.
  8. (colloquial) The wicket.

• Verb