- a fortified, usually walled residence, as of a prince or noble in feudal times.
- the chief and strongest part of the fortifications of a medieval city.
- a strongly fortified, permanently garrisoned stronghold.
- a large and stately residence, especially one, with high walls and towers, that imitates the form of a medieval castle.
- any place providing security and privacy: It may be small, but my home is my castle.
- the rook.
- to place or enclose in or as in a castle.
- to move (the king) in castling.
- to move the king two squares horizontally and bring the appropriate rook to the square the king has passed over.
- (of the king) to be moved in this manner.
- born in the U.S., and her husband and partner Vernon (Vernon Castle Blythe), 1887–1918, born in England, U.S. ballroom dancers.
- a fortified building or set of buildings, usually permanently garrisoned, as in medieval Europe
- any fortified place or structure
- a large magnificent house, esp when the present or former home of a nobleman or prince
- the citadel and strongest part of the fortifications of a medieval town
- chess another name for rook 2
- 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)
