near to the scope or range of something
"his answer wasn't even in the right ballpark"
A field, stadium or park where ball, especially baseball, is played.
"They decided to set up their picnic in the empty ballpark after the evening game ended."
To make a rough estimate of.
"I can't give you an exact figure, but I'd say our expenses are in the ballpark of five thousand dollars."
Approximate; close; on the right order of magnitude.
"We might not know the exact cost, but we can certainly give you a ballpark figure for the renovation project."