1. a small flying insect that produces flashes of light from its body, especially at night

Examples

• Children love catching fireflies in mason jars during summer evenings.
• The backyard was magical with dozens of fireflies blinking in the darkness.
• Fireflies use their light to attract mates and communicate with each other.
• We sat on the porch watching fireflies dance around the garden.
• The firefly’s glow comes from a chemical reaction in its abdomen.
• Lightning bugs and fireflies are the same insect with different regional names.