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.
      [1913 Webster]

   2. To manifest itself by, or as if by, emitting sparks; to
      glisten; to flash.
      [1913 Webster]

            I see bright honor sparkle through your eyes.
                                                  --Milton.
      [1913 Webster]

   3. To emit little bubbles, as certain kinds of liquors; to
      effervesce; as, sparkling wine.
      [1913 Webster]

   Syn: To shine; glisten; scintillate; radiate; coruscate;
        glitter; twinkle.
        [1913 Webster]

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.]
      [1913 Webster]

            The Landgrave hath sparkled his army without any
            further enterprise.                   --State
                                                  Papers.
      [1913 Webster]

   2. To scatter on or over. [Obs.] --Purchas.
      [1913 Webster]

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.
      [1913 Webster]

            The shock was sufficiently strong to strike out some
            sparkles of his fiery temper.         --Prescott.
      [1913 Webster]

   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]