The Collaborative International Dictionary of English v.0.48:

Sparkle \Spar"kle\, v. i. [imp. & p. p. Sparkled; p. pr. & vb.
   n. Sparkling.] [See Sparkle, n., Spark of fire.]
   1. To emit sparks; to throw off ignited or incandescent
      particles; to shine as if throwing off sparks; to emit
      flashes of light; to scintillate; to twinkle; as, the
      blazing wood sparkles; the stars sparkle.
      [1913 Webster]

            A mantelet upon his shoulder hanging
            Bretful of rubies red, as fire sparkling. --Chaucer.
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   2. To manifest itself by, or as if by, emitting sparks; to
      glisten; to flash.
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            I see bright honor sparkle through your eyes.
                                                  --Milton.
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   3. To emit little bubbles, as certain kinds of liquors; to
      effervesce; as, sparkling wine.
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   Syn: To shine; glisten; scintillate; radiate; coruscate;
        glitter; twinkle.
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The Collaborative International Dictionary of English v.0.48:

Sparkle \Spar"kle\, v. t.
   To emit in the form or likeness of sparks. "Did sparkle forth
   great light." --Spenser.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sparkle \Spar"kle\, v. t. [Cf. Sparble.]
   1. To disperse. [Obs.]
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            The Landgrave hath sparkled his army without any
            further enterprise.                   --State
                                                  Papers.
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   2. To scatter on or over. [Obs.] --Purchas.
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The Collaborative International Dictionary of English v.0.48:

Sparkle \Spar"kle\, n. [Dim. of spark.]
   1. A little spark; a scintillation.
      [1913 Webster]

            As fire is wont to quicken and go
            From a sparkle sprungen amiss,
            Till a city brent up is.              --Chaucer.
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            The shock was sufficiently strong to strike out some
            sparkles of his fiery temper.         --Prescott.
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   2. Brilliancy; luster; as, the sparkle of a diamond.
      [1913 Webster]

WordNet (r) 3.0 (2006):

sparkle
    n 1: merriment expressed by a brightness or gleam or animation
         of countenance; "he had a sparkle in his eye"; "there's a
         perpetual twinkle in his eyes" [syn: sparkle, twinkle,
         spark, light]
    2: the occurrence of a small flash or spark [syn: glitter,
       sparkle, coruscation]
    3: the quality of shining with a bright reflected light [syn:
       glitter, glister, glisten, scintillation, sparkle]
    v 1: reflect brightly; "Unquarried marble sparkled on the
         hillside" [syn: sparkle, scintillate, coruscate]
    2: be lively or brilliant or exhibit virtuosity; "The musical
       performance sparkled"; "A scintillating conversation"; "his
       playing coruscated throughout the concert hall" [syn:
       sparkle, scintillate, coruscate]
    3: emit or produce sparks; "A high tension wire, brought down by
       a storm, can continue to spark" [syn: spark, sparkle]
    4: become bubbly or frothy or foaming; "The boiling soup was
       frothing"; "The river was foaming"; "Sparkling water" [syn:
       foam, froth, fizz, effervesce, sparkle, form
       bubbles]

Moby Thesaurus II by Grady Ward, 1.0:

141 Moby Thesaurus words for "sparkle":
   animation, be brilliant, be merry with, beam, blaze, blink,
   blinking, blubber, boil, boil over, boiling, brightness,
   brilliance, bubble, bubble over, bubble up, bubbliness, bubbling,
   burble, burn, caper, caracole, carbonation, cheer, cheerfulness,
   chirp, chirrup, coruscate, coruscation, crack a joke, crack wise,
   dance, dash, dazzle, ebullience, ebulliency, ebullition,
   effervesce, effervescence, effervescency, elan, energy, excitement,
   ferment, fermentation, fire, firefly, fizz, fizzle, flame, flash,
   fleer at, flicker, foaming, frolic, frothiness, frothing, fun,
   gaiety, gambol, gibe at, glance, gleam, glimmer, glimmering, glint,
   glisk, glisten, glister, glitter, glittering, glow, glowworm,
   guggle, gurgle, gusto, hiss, jape, jest, joke, josh, joy, kid,
   kid around, laugh, life, lilt, liveliness, make a funny, make fun,
   make fun of, mock, oomph, pep, piquancy, play on words, plop,
   poignancy, poke fun at, pun, pungency, quip, raciness, radiance,
   radiate cheer, ridicule, romp, scintilla, scintillate,
   scintillation, scoff at, seethe, shimmer, shimmering, shine,
   simmer, sing, skip, smile, spangle, spark, spirit, spumescence,
   stroboscopic light, tinsel, twinkle, twinkling, utter a mot, verve,
   vigor, vim, vivacity, vividness, whistle, wink, wisecrack,
   wittiness, work, zeal, zing, zip