Definition of firefly

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  • firefly is a valid Scrabble US word with a point value of 16
  • firefly is a valid Scrabble UK word with a point value of 16
  • firefly is a valid Words with friends word with a point value of 16

Definition of firefly

  • nocturnal beetle common in warm regions having luminescent abdominal organs (noun)

    Synonyms

    1. lightning bug
  • tropical American click beetle having bright luminous spots (noun)

    Synonyms

    1. fire beetle
    2. pyrophorus noctiluca

See definition of firefly in Merriam Webster