CASTLE



Definition:

  1. [noun] a large and stately mansion
    Synonyms: palace

  2. [noun] a large building formerly occupied by a ruler and fortified against attack

  3. [noun] (chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard
    Synonyms: rook

  4. [noun] interchanging the positions of the king and a rook
    Synonyms: castling

  5. [verb] move the king two squares toward a rook and in the same move the rook to the square next past the king

Related Words: