|1.||a fortified building or set of buildings, usually permanently garrisoned, as in medieval Europe|
|2.||any fortified place or structure|
|3.||a large magnificent house, esp when the present or former home of a nobleman or prince|
|4.||the citadel and strongest part of the fortifications of a medieval town|
|5.||chess another name for rook|
|6.||chess to move (the king) two squares laterally on the first rank and place the nearest rook on the square passed over by the king, either towards the king's side (castling short) or the queen's side (castling long)|
|[C11: from Latin castellum, diminutive of castrum fort]|
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.