Synonyms for Twinkle (same or very similar meaning)
WordNet sense 1 (a rapid change in brightness; a brief spark or flash):
scintillation, sparkling
WordNet sense 2 (merriment expressed by a brightness or gleam or animation of countenance):
light, spark, sparkle
WordNet sense 3 (emit or reflect light in a flickering manner):
scintillate, winkle
WordNet sense 4 (gleam or glow intermittently):
blink, flash, wink
From the ODE community, based on WordNet
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