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
There was plenty of sword fighting, martial arts, explosions, fireballs and fireworks.
—Brady MacDonald, Oc Register, 24 Apr. 2026
It isn’t known for producing fireballs, and Bill Cooke, lead of NASA’s Meteoroid Environments Office, said the meteors are going to be moderately fast and faint.
—Avni Trivedi, CNN Money, 21 Apr. 2026
This is where the most spectacular shooting stars and fireballs can appear.
—Anthony Wood, Space.com, 20 Apr. 2026
That impact and his trajectory launched his dragster up into the air, erupting in a fireball, breaking into pieces and getting badly tangled in the catch fencing.
—Jan Wagner, San Diego Union-Tribune, 18 Apr. 2026
See All Example Sentences for fireball
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Brady MacDonald, Oc Register, 24 Apr. 2026
It isn’t known for producing fireballs, and Bill Cooke, lead of NASA’s Meteoroid Environments Office, said the meteors are going to be moderately fast and faint.
—Avni Trivedi, CNN Money, 21 Apr. 2026
This is where the most spectacular shooting stars and fireballs can appear.
—Anthony Wood, Space.com, 20 Apr. 2026
That impact and his trajectory launched his dragster up into the air, erupting in a fireball, breaking into pieces and getting badly tangled in the catch fencing.
—Jan Wagner, San Diego Union-Tribune, 18 Apr. 2026
See All Example Sentences for fireball
Cite this Entry
“Fireball.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fireball. Accessed 1 May. 2026.
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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