1. (noun) twinkle, scintillation, sparkling
a rapid change in brightness; a brief spark or flash
2. (verb) sparkle, twinkle, spark, light
merriment expressed by a brightness or gleam or animation of countenance
"he had a sparkle in his eye"; "there's a perpetual twinkle in his eyes"
3. (verb) flash, blink, wink, twinkle, winkle
gleam or glow intermittently
"The lights were flashing"
4. (verb) twinkle, winkle, scintillate
emit or reflect light in a flickering manner
"Does a constellation twinkle more brightly than a single star?"
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Definition of 'twinkle' 
