A liner or other material added behind or underneath.
Support, especially financial.
A backdrop.
The mounting of a horse or other animal.
The action of putting something back; a switching into reverse.
Musicians and vocalists who support the main performer.
Providing support for the main performer.
Anything added to something in order to stiffen it, such as a support beam, or starch for a collar.
An alcoholic drink taken to fortify oneself.