third base

noun

1
: the base that must be touched third by a base runner in baseball
2
: the player position for defending the area around third base
third baseman noun

Examples of third base in a Sentence

a runner on third base
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.
Kim also has the ability to play second base and third base. CBS News, 11 May 2026 Ibanez and Peterson made errors, with Ibañez making one on a routine play at third base. Abbey Mastracco, New York Daily News, 11 May 2026 Gabriel Milano has filled in at third base since Cuvet’s absence. Jordan McPherson, Miami Herald, 10 May 2026 Zach Neto led off the fourth with a single, and then Mike Trout hit a 105 mph bullet down the third base line. Jeff Fletcher, Oc Register, 9 May 2026 See All Example Sentences for third base

Word History

First Known Use

1845, in the meaning defined at sense 1

Time Traveler
The first known use of third base was in 1845

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Cite this Entry

“Third base.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/third%20base. Accessed 16 May. 2026.

Kids Definition

third base

noun
: the base that must be touched third by a base runner in baseball or the position of the player defending the area around it
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