Backing

1. p. pr. & vb. n. of Back
2. n. The act of moving backward, or of putting or moving anything backward.
3. n. That which is behind, and forms the back of, anything, usually giving strength or stability.
4. n. Support or aid given to a person or cause.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.