verb (v)

• give off(verb.weather)

  Example:
  The substance scintillated sparks and flashes.
  

  source: wordnet30
• reflect brightly(verb.weather)

  Synonym:
  coruscate, sparkle
  

  source: wordnet30
• emit or reflect light in a flickering manner(verb.weather)

  Synonym:
  twinkle, winkle
  

  source: wordnet30
• physics: fluoresce momentarily when struck by a charged particle or high-energy photon(verb.perception)

  source: wordnet30
• be lively or brilliant or exhibit virtuosity(verb.change)

  source: wordnet30
• To emit sparks, or fine igneous particles.(verb)

  source: webster1913