noun
banquette
bang-KET/bæŋˈket/
an upholstered bench along a wall, especially in a restaurant
The upholstered banquette stretches along the restaurant wall behind the dining tables.

Etymology
The underlying image is a “little bench.” In the furniture sense, the bench is a long upholstered seat, often fitted against a wall.
In context
One final thing that was missing is a back cushion for the dining banquette. I didn't want to make anything custom or spend too much on this, but leaning on a wall was not comfortable.
More examples
- She slid along the banquette to make room.
- Two banquettes lined the narrow dining room.
- The designer covered the banquette in green fabric.
Forms
banquette · banquettes