: 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
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.
Before this, the most 100 mph fastballs by any team was 673, by the 2018 Cardinals — and all 673 of those were thrown by Hicks in relief. Jayson Stark, New York Times, 9 Sep. 2026 Javier Sanoja hit an RBI triple before Pauley drove Tong's fastball into the Mets' bullpen in right. CBS News, 8 Sep. 2026 When his command is on point, his fastball and off-speed pitches can make life miserable for opposing hitters. Brandon Liguori, Miami Herald, 7 Sep. 2026 Additionally, Lynch struggled to put away batters with his sinker and four-seam fastball. Kansas City Star, 5 Sep. 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 10 Sep. 2026.

Kids Definition

: a baseball pitch thrown at full speed

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