- 1the part of a baseball field where players practice pitching (= throwing)
- 2extra pitchers (= players who throw the ball) in a baseball team who are used, if necessary, to replace the usual pitchers The team's bullpen is solid this year.
- 3a type of large office which is open-plan (= it does not have walls dividing the office area)
- 4a room where prisoners wait before they go into the court for their trial
Check pronunciation: bullpen