fastball

noun

fast·​ball ˈfas(t)-ˌbȯl How to pronounce fastball (audio)
: a baseball pitch thrown at full speed and often appearing to rise slightly as it nears the plate
fastballer noun

Examples of fastball in a Sentence

He struck him out with a fastball.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His fastball velocity is back to its usual spot, sitting comfortably at 95 mph and touching 96 mph. Jordan McPherson, Miami Herald, 10 May 2026 Sloane, who has increased his fastball velocity by over 10 mph since last spring and now reaches 90, hit the gym hard. Steve Millar, Chicago Tribune, 9 May 2026 The Tigers didn’t chase his fastball. Jaylon Thompson, Kansas City Star, 9 May 2026 The Texas commit possesses a triple-digit fastball and has allowed only one hit this season. Greg Dudek, Boston Herald, 9 May 2026 See All Example Sentences for fastball

Word History

First Known Use

1883, in the meaning defined above

Time Traveler
The first known use of fastball was in 1883

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Cite this Entry

“Fastball.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fastball. Accessed 12 May. 2026.

Kids Definition

fastball

noun
fast·​ball ˈfas(t)-ˌbȯl How to pronounce fastball (audio)
: a baseball pitch thrown at full speed

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