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
The flame spread, and the passengers were trapped inside; when the door was finally pushed open, the rush of oxygen sparked a fireball.
—Andrew Marantz, New Yorker, 28 Apr. 2025
Lastly, future studies can come up with better methods to identify what these fireballs are made of using the colors of the meteors.
—Patrick M. Shober, The Conversation, 14 Apr. 2025
Three people were killed, and one person was injured Friday morning when a small plane crashed near a major interstate in South Florida, sending a fireball into the air and pushing a car onto nearby railroad tracks, officials said.
—David Faris, MSNBC Newsweek, 11 Apr. 2025
Avi Loeb, a professor of science and founding director of Harvard's Black Hole Initiative, explains hawking radiation as a lightbulb that creates its own energy before evaporating into a fireball.
—Madison Dapcevich, Discover Magazine, 21 Mar. 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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Andrew Marantz, New Yorker, 28 Apr. 2025
Lastly, future studies can come up with better methods to identify what these fireballs are made of using the colors of the meteors.
—Patrick M. Shober, The Conversation, 14 Apr. 2025
Three people were killed, and one person was injured Friday morning when a small plane crashed near a major interstate in South Florida, sending a fireball into the air and pushing a car onto nearby railroad tracks, officials said.
—David Faris, MSNBC Newsweek, 11 Apr. 2025
Avi Loeb, a professor of science and founding director of Harvard's Black Hole Initiative, explains hawking radiation as a lightbulb that creates its own energy before evaporating into a fireball.
—Madison Dapcevich, Discover Magazine, 21 Mar. 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 13 May. 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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