Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun firefly

2 senses of firefly

Sense 1
firefly, fire beetle, Pyrophorus noctiluca -- (tropical American click beetle having bright luminous spots)
       => elaterid beetle, elater, elaterid -- (any of various widely distributed beetles)

Sense 2
firefly, lightning bug -- (nocturnal beetle common in warm regions having luminescent abdominal organs)
       => beetle -- (insect having biting mouthparts and front wings modified to form horny covers overlying the membranous rear wings)