Pronunciation: (bôl'pärk"),[key] —n. 1. a tract of land where ball games, esp. baseball, are played.
2. a baseball stadium.
3. in the ballpark,Informal.within reasonable, acceptable, or expected limits: The price may go up another $10, but that's still in the ballpark.
—adj. Informal.being an approximation, based on an educated guess: Give me a ballpark figure on our total expenses for next year.Also,ball' park".