parapet
🇺🇸
/ˈpærəpɪt/
🇬🇧
/ˈpærəpɪt/
A protective barrier that is built along the edge of a bridge, roof, or other high place to prevent people from falling off.
We sat on the parapet of the bridge, enjoying the view of the river below.
A protective wall used in military situations to shield soldiers from enemy fire.
The soldiers took cover behind the parapet, avoiding the enemy's line of sight.