The Collaborative International Dictionary of English v.0.48:

Spangle \Span"gle\, v. i.
   To show brilliant spots or points; to glisten; to glitter.
   [1913 Webster]

         Some men by feigning words as dark as mine
         Make truth to spangle, and its rays to shine. --Bunyan.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Spangle \Span"gle\, n. [OE. spangel, dim. of AS. spange. See
   Spang a spangle.]
   1. A small plate or boss of shining metal; something
      brilliant used as an ornament, especially when stitched on
      the dress.
      [1913 Webster]

   2. Figuratively, any little thing that sparkless. "The rich
      spangles that adorn the sky." --Waller.
      [1913 Webster]

   Oak spangle. See under Oak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Spangle \Span"gle\, v. t. [imp. & p. p. Spangled; p. pr. & vb.
   n. Spangling.]
   To set or sprinkle with, or as with, spangles; to adorn with
   small, distinct, brilliant bodies; as, a spangled
   breastplate. --Donne.
   [1913 Webster]

         What stars do spangle heaven with such beauty? --Shak.
   [1913 Webster]

   Spangled coquette (Zool.), a tropical humming bird
      (Lophornis reginae). See Coquette, 2.
      [1913 Webster]

WordNet (r) 3.0 (2006):

spangle
    n 1: adornment consisting of a small piece of shiny material
         used to decorate clothing [syn: sequin, spangle,
         diamante]
    v 1: glitter as if covered with spangles
    2: decorate with spangles; "the star-spangled banner" [syn:
       spangle, bespangle]

The Jargon File (version 4.4.7, 29 Dec 2003):

spangle
 n.

    [UK] The singular of bells and whistles. See also spungle.