Economic Definition of cash. Defined.
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Term cash Definition: the common term for paper currency and metal coins components of the money supply. Cash includes the foldable green paper with portraits of famous dead people, and those shiny metal discs with raised imprints of famous dead people. Cash is often divided into the "cash in circulation" which is what the nonbank public uses for purchases, and "vault cash" which is what banks have stashed away in the large, highly-secured, vaults. Cash in circulation is part of the money supply. Vault cash is part of bank reserves.