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.
Martinez has a five-pitch arsenal, mainly relying on a sweeper and four-seam fastball while also mixing in a cutter, changeup and sinker. Noah Camras, MSNBC Newsweek, 15 Sep. 2025 Webb threw his sinking, two-seam fastball just eight times. Andrew Baggarly, New York Times, 14 Sep. 2025 Scott tried to elevate a fastball. Justice Delos Santos, Mercury News, 13 Sep. 2025 Then Farmer pulled Sears’ next pitch — a middle-in fastball — out to left. Jeff Sanders, San Diego Union-Tribune, 13 Sep. 2025 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 17 Sep. 2025.

Kids Definition

fastball

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

More from Merriam-Webster on fastball

Last Updated: - Updated example sentences
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