ˈkɑːsl
ˈkæsl
1 a large strong building with thick high walls and towers, built in the past by kings or queens, or other important people, to defend themselves against attackWindsor Castlea medieval castle see also sandcastle2 (also rook) (in chess) any of the four pieces placed in the corner squares of the board at the start of the game, usually made to look like a castleIdioms
