To mean gold and silver coin of the United States Code, Title 12, Section 152. Worse yet, it's an unsecured note, an indebtedness for which no security has been pledged. It's fiat money. Because it is not backed by anything of true value, our currency can be devalued at any time. I bet you thought - Federal Reserve Bank of Boston.
All money is borrowed from banks, and is known as debt money.
But when they repay the loan to the bank, the money is removed from circulation and the economy suffers. Of course, since the interest money was not issued into the economy, some businesses must fail in order to supply the interest money. The Fractional Reserve Equally as bad is Fractional Reserve Banking. Banks, and the Fed, loan additional money above their cash assets at an interest rate set by the Fed. Thus banks are printing money in the form of checks.