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 Austin Xu and Luke Orrock each got on base twice, with Xu also catching at least half a dozen difficult catches at first base for outs. Joseph Dycus, The Mercury News, 24 May 2024 This will be the third season Long Reach has had the same starters in the infield and outfield, only replacing first base and one outfield position this year. Jacob Steinberg, Baltimore Sun, 24 May 2024 See all Example Sentences for first base 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'first base.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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

Dictionary Entries Near first base

Cite this Entry

“First base.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/first%20base. Accessed 28 May. 2024.

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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!