| 1. | a tract of land where ball games, esp. baseball, are played. |
| 2. | a baseball stadium. |
| 3. | Informal. being an approximation, based on an educated guess: Give me a ballpark figure on our total expenses for next year. |
| 4. | in the ballpark, Informal. within reasonable, acceptable, or expected limits: The price may go up another $10, but that's still in the ballpark. |