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.
Lee’s play prompted the Twins to switch him to third base a month ago, with Gray taking the majority of reps at short. Dan Hayes, New York Times, 23 June 2026 However, the split between Devers and the Red Sox reportedly began as a dispute over his future after he was moved from third base to first base, but devolved into a larger issue. Sean Campbell, Sacbee.com, 22 June 2026 Garcia shifted over from third base as Nick Loftin was inserted into the starting lineup. Kansas City Star, 22 June 2026 The Rockies had a runner thrown out at home, and another got tagged out after being caught between second and third base when a runner in front of him stopped at third. ABC News, 22 June 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 24 Jun. 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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