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.
Bohm sent a 1-and-0 fastball 406 feet over the wall. Bill Plunkett, Oc Register, 31 May 2026 The left fielder, who had taken over for Brandon Marsh in the top of the sixth, connected on a four-seam fastball that Dodgers reliever Tanner Scott left too far over the plate for a go-ahead home run. Liana Handler, Los Angeles Times, 31 May 2026 Filleman came set at his waist, raised his leg and fired a fastball. Troy Renck, Denver Post, 31 May 2026 Adames drove a 3-2 fastball into the left-field seats for his sixth career slam. CBS News, 31 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 3 Jun. 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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