backing

noun

1. (countable, uncountable)Support, especially financial.

   “It's a volunteer organization that works with backing from the city and a few grants.”

2. (countable, uncountable)A liner or other material added behind or underneath.

   “The cardboard backing gives the notebook a little extra stiffness.”

   “An old print was discovered some time ago in an arch at Waterloo Dock Goods Station[,] Liverpool, in use as a backing on which to write time sheets.”

   “In general, the locomotives are painted dark green; the numberplates are brass, with a red backing, and are usually carried on the tank side.”

3. (countable, uncountable)A backdrop.

   “The simplest and cheapest answer is to introduce a scenic backing of some kind, a backdrop, a drape, some flats to restrict the shot and obscure whatever is outside.”

4. (countable, uncountable)Musicians and vocalists who support the main performer.
5. (countable, uncountable)The mounting of a horse or other animal.
6. (countable, uncountable)The action of putting something back; a switching into reverse.

adj

1. (not-comparable)Providing support for the main performer.

verb

1. (form-of, gerund, participle, present)present participle and gerund of back