A little spark; a scintillation.

Brilliancy; luster; as, the sparkle of a diamond.

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.

To manifest itself by, or as if by, emitting sparks; to glisten; to flash.