Source : Webster's Revised Unabridged Dictionary (1913)

Coiner \Coin"er\, n.
   1. One who makes or stamps coin; a maker of money; --
      usually, a maker of counterfeit money.

            Precautions such as are employed by coiners and
            receivers of stolen goods.            --Macaulay.

   2. An inventor or maker, as of words. --Camden.

Source : WordNet®

coiner
     n 1: a maker of counterfeit coins
     2: someone who is a source of new words or new expressions
     3: a skilled worker who coins or stamps money [syn: {minter}, {moneyer}]