Source : Webster's Revised Unabridged Dictionary (1913)

Counterfeiter \Coun"ter*feit`er\ (-f?t`?r), n.
   1. One who counterfeits; one who copies or imitates;
      especially, one who copies or forges bank notes or coin; a
      forger.

            The coin which was corrupted by counterfeiters.
                                                  --Camden.

   2. One who assumes a false appearance or semblance; one who
      makes false pretenses.

            Counterfeiters of devotion.           --Sherwood.

Source : WordNet®

counterfeiter
     n : someone who makes copies illegally [syn: {forger}]