What is 1b short for?

First base

A baseball abbreviation that refers to first base, or more specifically, the player whose defensive position is at first base; can also refer to a single in baseball stats and fantasy baseball.


"I needer a better 1B on my team, my guy doesn't do much at the plate anymore."

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Last Updated: October 22, 2014

1B definition

This page explains what the abbreviation "1B" means. The definition, example, and related terms listed above have been written and compiled by the Slangit team.

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