banquette

(military) A narrow area behind a defensive wall's parapet elevated above its terreplein and used by defenders to shoot at attackers.

A bench built into a wall, especially (military) one built into a wall of a defensive trench, used for sitting and for shooting at attackers.

An upholstered bench, e.g., along a wall of a restaurant or lounge area.

(dated) A bench or similar seat on top of a diligence or other public vehicle.

(Louisiana, Texas) A sidewalk.