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.
Santiago Espinal made his Dodgers debut, taking the place of Max Muncy at third base while batting seventh, ahead of Andy Pages and Miguel Rojas. Doug Padilla, Oc Register, 29 Mar. 2026 Twenty-three plate appearances with a runner on second or third base produced two hits. Matt Kawahara, Houston Chronicle, 29 Mar. 2026 Santiago Espinal also made his Dodgers debut, starting at third base. Maddie Lee, Los Angeles Times, 29 Mar. 2026 Norby, who is moving to first base from third base, is starting there again Saturday. Jordan McPherson, Miami Herald, 28 Mar. 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 2 Apr. 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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