castle
🇺🇸
/ˈkæsl/
🇬🇧
/ˈkɑːsl/
A large, strong building with high walls and towers, built long ago by kings or queens for protection.
The king lived in a big castle to stay safe from enemies.
A chess piece that starts in the corner and looks like a castle tower.
In chess, the castle piece can move in straight lines.