The Collaborative International Dictionary of English v.0.48:

Sleight \Sleight\, n. [OE. sleighte, sleihte, sleithe, Icel.
   sl?g? (for sl?g?) slyness, cunning, fr. sl?gr (for sl?gr)
   sly, cunning. See Sly.]
   1. Cunning; craft; artful practice. [Obs.] "His sleight and
      his covin." --Chaucer.
      [1913 Webster]

   2. An artful trick; sly artifice; a feat so dexterous that
      the manner of performance escapes observation.
      [1913 Webster]

            The world hath many subtle sleights.  --Latimer.
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   3. Dexterous practice; dexterity; skill. --Chaucer. "The
      juggler's sleight." --Hudibras.
      [1913 Webster]

   Sleight of hand, legerdemain; prestidigitation.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sleight of hand
    n 1: manual dexterity in the execution of tricks [syn:
         prestidigitation, sleight of hand]

Moby Thesaurus II by Grady Ward, 1.0:

78 Moby Thesaurus words for "sleight of hand":
   Prospero, airiness, appearance, artful dodge, artifice,
   bag of tricks, blind, bluff, bosey, catch, chicanery, chouse,
   conjuration, curve, curve-ball, delusiveness, design, device,
   dirty deal, dirty trick, dodge, escamotage, fallaciousness,
   false appearance, false light, false show, falseness, fast deal,
   feint, fetch, ficelle, gambit, gimmick, googly, hanky-panky,
   hocus-pocus, hokey-pokey, idealization, illusionism, illusionist,
   illusiveness, immateriality, jiggery-pokery, joker, juggle,
   jugglery, juggling, legerdemain, magic, magic act, magic show,
   magician, monkey business, mumbo jumbo, pass, ploy,
   prestidigitation, ruse, scheme, scurvy trick, seeming, semblance,
   shift, show, simulacrum, sleight, sleight-of-hand trick, sorcerer,
   sorcery, specious appearance, stratagem, subterfuge, trick,
   trickery, unactuality, unreality, unsubstantiality, wile