Answer: scintillate

AnswerCrossword Clue
SCINTILLATETwinkle.
SCINTILLATESparkle.
SCINTILLATESparkle
SCINTILLATEEmit sparks
SCINTILLATEShow many flashes of light
scintillateto twinkle, as the stars.
scintillateEmit flashes of light; sparkle
scintillateto sparkle
scintillateFluoresce momentarily when struck by a photon or charged particle