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.
José Ramírez chopped a run-scoring infield single to third base. Zack Meisel, New York Times, 24 Sep. 2025 Along with catching, Rodriguez has played first base, second base, third base and left field to get his bat in the lineup. Justice Delos Santos, Mercury News, 23 Sep. 2025 The Boston Red Sox invested in Alex Bregman last winter to change the culture of the clubhouse and produce like his All-Star self at third base. Tim Crowley, MSNBC Newsweek, 23 Sep. 2025 Morel’s throw from left ensured that catcher Nick Fortes was waiting with time to spare as Gonzalez raced down the third base line. Gabrielle Starr, Boston Herald, 22 Sep. 2025 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

Browse Nearby Words

Cite this Entry

“Third base.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/third%20base. Accessed 29 Sep. 2025.

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
Last Updated: - Updated example sentences
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