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.
Verlander’s four-seam fastball velocity was noticeably down against the Cardinals. Justice Delos Santos, Mercury News, 23 Sep. 2025 Sasaki, sidelined since mid-May because of a shoulder impingement, struck out two and walked one, his fastball touching 100 mph, in his previous outing, a scoreless inning for OKC on Thursday night. Mike Digiovanna, Oc Register, 22 Sep. 2025 Raleigh smacked a 95 mph fastball from Houston Astros starter Framber Valdez to right-center field in the top of the third inning to extend Seattle’s lead to 3-0 at Daikin Park in a series between two teams battling to win the American League West. Sarah Jean Maher, New York Times, 21 Sep. 2025 King threw 70 pitches and was for much of the game sharp enough with his fastball, sweeper and especially his changeup. Kevin Acee, San Diego Union-Tribune, 21 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 30 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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