first base

noun

1
: the base that must be touched first by a base runner in baseball
2
: the player position for defending the area around first base
3
: the first step or stage in a course of action
plans never got to first base
first baseman noun

Examples of first base in a Sentence

a runner on first base She hit a ground ball to first base. He used to be a catcher, but now he plays first 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.
Connor Joe, called up Monday to replace Lockridge, got a handful of games in center field this year at Triple-A El Paso after Forrest Wall was injured, but Shildt on Monday said that Joe would likely fit into the left field/first base/DH rotation. Jeff Sanders, San Diego Union-Tribune, 14 Apr. 2025 Teammates George Springer, José Berrios, Andrés Giménez, Anthony Santander and Myles Straw, as well as manager John Schneider and first base coach Mark Budzinski, were among those who popped in to watch the ceremony. Richard Deitsch, New York Times, 14 Apr. 2025 Other staffers include bench coach Skip Schumaker, third base coach Dino Ebel, first base coach George Lombard, bullpen coach David Ross, and assistant managers Michael Young and Fredi González. Gary Phillips, New York Daily News, 14 Apr. 2025 Logan Maxwell struck out on a 2-2 slider from Harris and Kuhio Aloy popped up to first base. Matt Jones, Arkansas Online, 13 Apr. 2025 See All Example Sentences for first base

Word History

First Known Use

1848, in the meaning defined at sense 1

Time Traveler
The first known use of first base was in 1848

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Cite this Entry

“First base.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first%20base. Accessed 21 Apr. 2025.

Kids Definition

first base

noun
: the base that must be touched first by a base runner in baseball
also : the position of the player defending the area around first base

More from Merriam-Webster on first base

Last Updated: - Updated example sentences
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