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.
A cloth lining between the outer and inner layers of a garment.
Correction or alteration by writing between the lines; interlineation.
The scheduling of vehicles to operate more than one route, or the selling of tickets for a trip across multiple carriers