Letterora

Crossword clue: a light that flashes on and off; used as a signal or to send messages

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

blinker 7 letters wn-def

a light that flashes on and off; used as a signal or to send messages

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