From Longman Dictionary of Contemporary Englishfirst baseˌfirst ˈbase noun [countable] 1 a) DSBthe first of the four places in a game of baseball that a player must touch before gaining a point b) DSBthe position of a defending player near this place He plays first base for the Red Sox.2 → get to/reach first base
Examples from the Corpus
first base• In the meantime, expect another start or two at first base for Matt Williams.• On this night, he is coaching first base for Grace Builders, an adult team managed by his grandson.• Real shame our movie never got past first base.• No, he scooped it up on one hop and rifled it to first base. 