1N-COUNT 城堡;堡垒 A castle is a large building with thick, high walls. Castles were built by important people, such as kings, in former times, especially for protection during wars and battles. 城堡;堡垒
2See also:sand castle
3N-COUNT (国际象棋中的)车 In chess, a castle is a piece that can be moved forwards, backwards, or sideways. (国际象棋中的)车