Noun

1. The activity of providing for or maintaining by supplying with money or necessities
2. Aiding the cause or policy or interests of
3. Something providing immaterial assistance to a person or cause or interest
4. A military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission
5. Documentary validation
6. The financial means whereby one lives
7. Supporting structure that holds up or provides a foundation
8. The act of bearing the weight of or strengthening
9. A musical part (vocal or instrumental) that supports or provides background for other musical parts
10. Any device that bears the weight of another thing
11. Financial resources provided to make some project possible

Verb

1. Give moral or psychological support, aid, or courage to
2. Support materially or financially
3. Be behind; approve of
4. Be the physical support of; carry the weight of
5. Establish or strengthen as with new evidence or facts
6. Adopt as a belief
7. Support with evidence or authority or make more certain or confirm
8. Argue or speak in defense of
9. Play a subordinate role to (another performer)
10. Be a regular customer or client of
11. Put up with something or somebody unpleasant