Answer: flashed

AnswerCrossword Clue
flashedsudden, brief outburst
flashedto show briefly
flashedto appear suddenly
flashedto display ostentatiously
flashedto cause to flash
flashedsudden burst of light
flashedto break into sudden light
flashedto move rapidly
flashedinstant
FLASHEDEmulated a firefly
flashedFLASH, to emit a sudden burst of light
flashedbrief news dispatch
FLASHEDDisplayed, as a badge
FLASHEDSparkled.
FLASHEDGlinted.
FLASHEDBriefly showed oneself in public
FLASHEDBlinked on and off
FLASHEDShowed, as a grin