twinkle

Meanings

• a rapid change in brightness; a brief spark or flash
• merriment expressed by a brightness or gleam or animation of countenance
  • "there's a perpetual twinkle in his eyes"
• gleam or glow intermittently
• emit or reflect light in a flickering manner
  • "Does a constellation twinkle more brightly than a single star?"

Synonyms

blink, flash, light, scintillate, scintillation, spark, sparkle, sparkling, wink, winkle