Source : Webster's Revised Unabridged Dictionary (1913)

Juggler \Jug"gler\, n. [OE. jogelour, juglur, OF. jogleor,
   jugleor, jongleor, F. jongleur, fr. L. joculator a jester,
   joker, fr. joculus a little jest or joke, dim. of jocus jest,
   joke. See {Joke}, and cf. {Jongleur}, {Joculator}.]
   1. One who practices or exhibits tricks by sleight of hand;
      one skilled in legerdemain; a conjurer.

            As nimble jugglers that deceive the eye. --Shak.

            Jugglers and impostors do daily delude them. --Sir
                                                  T. Browne.

   2. A deceiver; a cheat. --Shak.

Source : WordNet®

juggler
     n : a performer who juggles objects and performs tricks of
         manual dexterity