first base

first base

noun

Definition of FIRST BASE

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 base·man \-ˈbā-smən\ noun

Examples of FIRST BASE

1. a runner on first base
2. She hit a ground ball to first base.
3. He used to be a catcher, but now he plays first base.

First Known Use of FIRST BASE

1845