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
Blue Origin has yet to complete an investigation into the incident, but whatever the cause, New Glenn exploded on the launchpad in an enormous fireball visible for more than a hundred miles, destroying the launch vehicle and spreading damage across LC-36 and the surrounding vegetation.
—Josh Dinner, Space.com, 3 June 2026
There is an incredible amount of electrical wiring that almost certainly got fried by the fireball.
—Eric Berger, ArsTechnica, 3 June 2026
Ground teams were performing an important test known as a hot fire in preparation for what would have been New Glenn's fourth flight when the rocket exploded in a violent fireball widely seen around Florida.
—Eric Lagatta, USA Today, 2 June 2026
That’s well above the normal 50 degrees, but well under the 113 degrees that experts say could trigger chemical changes that might end in a fireball.
—Andre Mouchard, Oc Register, 2 June 2026
See All Example Sentences for fireball
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Josh Dinner, Space.com, 3 June 2026
There is an incredible amount of electrical wiring that almost certainly got fried by the fireball.
—Eric Berger, ArsTechnica, 3 June 2026
Ground teams were performing an important test known as a hot fire in preparation for what would have been New Glenn's fourth flight when the rocket exploded in a violent fireball widely seen around Florida.
—Eric Lagatta, USA Today, 2 June 2026
That’s well above the normal 50 degrees, but well under the 113 degrees that experts say could trigger chemical changes that might end in a fireball.
—Andre Mouchard, Oc Register, 2 June 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 9 Jun. 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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