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.
Pumping fastballs at 104 mph, Jacob Misiorowski handled three scoreless innings in the middle of the evening. Andy McCullough, New York Times, 7 Oct. 2025 Schlittler dominated with his fastball, and 73 of his pitches were over 97 mph. Ryan Morik, FOXNews.com, 3 Oct. 2025 Cleveland Guardians designated hitter David Fry, a Grapevine High School product, was hit with a 99.6 mph fastball on a bunt attempt Tuesday at Progressive Field in Cleveland. Charles Baggarly, Fort Worth Star-Telegram, 24 Sep. 2025 Verlander’s four-seam fastball velocity was noticeably down against the Cardinals. Justice Delos Santos, Mercury News, 23 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

Browse Nearby Words

Cite this Entry

“Fastball.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fastball. Accessed 11 Oct. 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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