cas·tle /ˈkæsəl/
 城堡,象棋中的車(vt.)置于城堡中,築城堡防禦


 Cas·tle n.
 1. A fortified residence, especially that of a prince or nobleman; a fortress.
    The house of every one is to him castle and fortress, as well for his defense againts injury and violence, as for his repose.   --Coke.
 Our castle's strength
 Will laugh a siege to scorn.   --Shak.
 Note: ☞ Originally the mediæval castle was a single strong tower or keep, with a palisaded inclosure around it and inferior buidings, such as stables and the like, and surrounded by a moat; then such a keep or donjon, with courtyards or baileys and accessory buildings of greater elaboration a great hall and a chapel, all surrounded by defensive walls and a moat, with a drawbridge, etc. Afterwards the name was retained by large dwellings that had formerly been fortresses, or by those which replaced ancient fortresses.
 2. Any strong, imposing, and stately mansion.
 3. A small tower, as on a ship, or an elephant's back.
 4. A piece, made to represent a castle, used in the game of chess; a rook.
 Castle in the air, a visionary project; a baseless scheme; an air castle; -- sometimes called a castle in Spain (F. Château en Espagne).
 Syn: -- Fortress; fortification; citadel; stronghold. See Fortress.


 Cas·tle v. i. [imp. & p. p. Castled p. pr. & vb. n. Castling ] Chess To move the castle to the square next to king, and then the king around the castle to the square next beyond it, for the purpose of covering the king.

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 castle
      n 1: a large and stately mansion [syn: palace]
      2: a large building formerly occupied by a ruler and fortified
         against attack
      3: (chess) the piece that can move any number of unoccupied
         squares in a direction parallel to the sides of the
         chessboard [syn: rook]
      4: interchanging the positions of the king and a rook [syn: castling]
      v : move the king two squares toward a rook and in the same move
          the rook to the square next past the king


 Castle
    a military fortress (1 Chr. 11:7), also probably a kind of tower
    used by the priests for making known anything discovered at a
    distance (1 Chr. 6:54). Castles are also mentioned (Gen. 25:16)
    as a kind of watch-tower, from which shepherds kept watch over
    their flocks by night. The "castle" into which the chief captain
    commanded Paul to be brought was the quarters of the Roman
    soldiers in the fortress of Antonia (so called by Herod after
    his patron Mark Antony), which was close to the north-west
    corner of the temple (Acts 21:34), which it commanded.