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
For Houstonians who saw it, the fireball meteor that streaked across the East Texas sky last month was a brief, blazing moment of awe.
—Maliya Ellis, Houston Chronicle, 5 Apr. 2026
There are shooting options connected with Universal’s app, where selections include firing off steel spheres, fireballs and, as minions would have it, bananas.
—Dewayne Bevil, The Orlando Sentinel, 3 Apr. 2026
Kristin Scharkey here to bring you Friday’s news, from an exclusive interview with Riverside County Sheriff Chad Bianco to a look at the spike in fireballs across Western skies.
—Kristin Scharkey, USA Today, 3 Apr. 2026
Witness accounts described powerful shockwaves and fireballs spreading across parts of the city shortly after the strike.
—Sujita Sinha, Interesting Engineering, 31 Mar. 2026
See All Example Sentences for fireball
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Maliya Ellis, Houston Chronicle, 5 Apr. 2026
There are shooting options connected with Universal’s app, where selections include firing off steel spheres, fireballs and, as minions would have it, bananas.
—Dewayne Bevil, The Orlando Sentinel, 3 Apr. 2026
Kristin Scharkey here to bring you Friday’s news, from an exclusive interview with Riverside County Sheriff Chad Bianco to a look at the spike in fireballs across Western skies.
—Kristin Scharkey, USA Today, 3 Apr. 2026
Witness accounts described powerful shockwaves and fireballs spreading across parts of the city shortly after the strike.
—Sujita Sinha, Interesting Engineering, 31 Mar. 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 8 Apr. 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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