fastball
noun
fast·ball
ˈfas(t)-ˌbȯl 
: a baseball pitch thrown at full speed and often appearing to rise slightly as it nears the plate
Examples of fastball in a Sentence
He struck him out with a fastball.
Recent Examples on the Web
The veteran reliever has one of the best fastballs in the sport, which frequently touches 100 mph.
—
Ryan Canfield, FOXNews.com, 29 Nov. 2025
Along with his fastball and slider, Imai’s repertoire also features a splitter, changeup, curveball and sinker (also referred to as a vulcan change).
—Justice Delos Santos, Mercury News, 28 Nov. 2025
Duckworth, who was renowned to possess a hard fastball from a whip-like delivery, seemed like a good fit.
—Jon Paul Hoornstra, MSNBC Newsweek, 27 Nov. 2025
Most likely, Imai’s low-slot fastball with surprising ride will play well high in the zone and be an asset to him in MLB.
—Eno Sarris, New York Times, 19 Nov. 2025
See All Example Sentences for fastball
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Ryan Canfield, FOXNews.com, 29 Nov. 2025
Along with his fastball and slider, Imai’s repertoire also features a splitter, changeup, curveball and sinker (also referred to as a vulcan change).
—Justice Delos Santos, Mercury News, 28 Nov. 2025
Duckworth, who was renowned to possess a hard fastball from a whip-like delivery, seemed like a good fit.
—Jon Paul Hoornstra, MSNBC Newsweek, 27 Nov. 2025
Most likely, Imai’s low-slot fastball with surprising ride will play well high in the zone and be an asset to him in MLB.
—Eno Sarris, New York Times, 19 Nov. 2025
See All Example Sentences for fastball
Cite this Entry
“Fastball.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fastball. Accessed 3 Dec. 2025.
Copy CitationKids Definition
fastball
noun
fast·ball
ˈfas(t)-ˌbȯl
: a baseball pitch thrown at full speed
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