fireball
noun
fire·ball
ˈfī(-ə)r-ˌbȯl 
1
: a ball of fire
also
: something resembling such a ball
the primordial fireball associated with the beginning of the universe —
Scientific American
Scientific American 2
: a brilliant meteor that may trail bright sparks
3
: the highly luminous cloud of vapor and dust created by a nuclear explosion
4
: a highly energetic person
Examples of fireball in a Sentence
The house erupted into a fireball.
what this club needs is a fireball who will bring some sorely needed energy and enthusiasm
Recent Examples on the Web
Fossils and fireballs While dinosaurs won’t be making a comeback anytime soon, scientists have long debated whether the giants were already declining when an asteroid wiped them from the face of the Earth 66 million years ago.
—Ashley Strickland, CNN Money, 12 Apr. 2025
This recognition validates the passion, innovation, creativity and hard work that go into every fall, fight, and fireball.
—Daniel R. Depetris, MSNBC Newsweek, 10 Apr. 2025
Our heroes manage to drive them back using their own army of Iron Golems, as well as fireballs spewed by a massive, squid-like Ghast.
—Randall Colburn, EW.com, 9 Apr. 2025
Shown to critics on the big screen but produced for Prime Video, the movie isn’t mixed for anything better than TV, where cheap effects (like the CG fireball that flips the presidential limo) are to be expected.
—Peter Debruge, Variety, 9 Apr. 2025
See All Example Sentences for fireball
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Ashley Strickland, CNN Money, 12 Apr. 2025
This recognition validates the passion, innovation, creativity and hard work that go into every fall, fight, and fireball.
—Daniel R. Depetris, MSNBC Newsweek, 10 Apr. 2025
Our heroes manage to drive them back using their own army of Iron Golems, as well as fireballs spewed by a massive, squid-like Ghast.
—Randall Colburn, EW.com, 9 Apr. 2025
Shown to critics on the big screen but produced for Prime Video, the movie isn’t mixed for anything better than TV, where cheap effects (like the CG fireball that flips the presidential limo) are to be expected.
—Peter Debruge, Variety, 9 Apr. 2025
See All Example Sentences for fireball
Cite this Entry
“Fireball.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fireball. Accessed 22 Apr. 2025.
Copy CitationKids Definition
fireball
noun
fire·ball
-ˌbȯl
1
: a ball of fire
2
: a very bright meteor
3
: the glowing cloud of vapor and dust created by a nuclear explosion
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