noun
1. : a curtain attached or fitted so as to be attached at the side of something (as a vehicle, window, or building)
the side curtains of an automobile
canvas side curtains for a tent
2.
a. : one of several canvas weather cloths rigged vertically between the deck or the bulwarks and the ridgerope of a ship
b. : one of several similar cloths used to close the openings between the hull and the canopy of a small boat