base on ballsbase on balls
base on balls
nounpl. bases on balls Abbr. BB Baseball
An advance to first base that is awarded to a batter who takes four pitches that are balls.
(plural bases on balls)
- (baseball) An instance where the batter is allowed to go directly to first base without the possibility of being put out, due to the opposing pitcher delivering four balls.
- Alternative spelling of base on balls.