re·li·ance 
(rĭ-līəns)
(rĭ-līəns)n.
1. The act of relying or the state of being reliant: the economy's reliance on imported oil.
2. The faith, confidence, or trust felt by one who relies: The general placed his reliance on the element of surprise. See Synonyms at trust.
3. Archaic One relied on; a mainstay.