Coinage /(?)/

Coin·age

Coinage

n.
  1. The act or process of converting metal into money.
    The care of the coinage was committed to the inferior magistrates.
  2. Coins; the aggregate coin of a time or place.
  3. The cost or expense of coining money.
  4. The act or process of fabricating or inventing; formation; fabrication; that which is fabricated or forged.
    This is the very coinage of your brain.