box set
noun Theater.
a boxlike stage set consisting of flats that form the back wall, side walls, and often the ceiling, painted to represent the interior of a room.
Also called,
especially British,
box scene.
Origin of box set
First recorded in 1885–90
Words nearby box set
box pleat,
box plot,
box room,
box score,
box seat,
box set,
box sill,
box social,
box spanner,
box spring,
box stall