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.
His above-average extension has made his 93-94 mph fastball look more like 96-97. Jim Bowden, New York Times, 8 Sep. 2025 In recent years, his arsenal has consisted of 4-5 different pitches - splitter, four-seam fastball, cutter, curve and slider. Tony Blengino, Forbes.com, 8 Sep. 2025 Scott’s third pitch was a fastball well below the strike zone. Bill Plunkett, Oc Register, 7 Sep. 2025 Additionally, Ragans had command of his signature pitches with the four-seam fastball sitting around 95 mph. Kansas City Star, 7 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 9 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!