firefly
noun
any nocturnal beetle of the family Lampyridae, characterized by a soft body with a light-producing organ at the rear of the abdomen.
fireflies
-
pluralof firefly.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He has also used the technology for art installations with flexible rods that, when speared into the ground, have tips that glow in the dark like fireflies on tall grass.
From Barron's ● Aug. 5, 2026
In 2012, a team of researchers investigating reports of synchronous fireflies stayed at their bed-and-breakfast in Kellettville, Pa., a small community surrounded by Allegheny National Forest.
From The Wall Street Journal ● Jun. 3, 2026
In a way, all animals make rhythms, whether in the form of fireflies flashing, birds chirping or even a tiger pacing back and forth.
From Salon ● Jun. 7, 2025
Scientists have named the distant galaxy Firefly Sparkle, because it also looks like a swarm of multi-coloured fireflies.
From BBC ● Dec. 11, 2024
It’s about waking up surrounded by ten million fireflies, which is something I like to imagine.
From "The Thing About Jellyfish" by Ali Benjamin
