a ballpark figure | a ballpark estimate
Meaning: If you give a ballpark figure or a ballpark estimate, you give a number which you think is fairly close to the actual one.
- We don't know the exact cost, but a ballpark figure would be around six million dollars.
- I know you can't tell me exactly when it'll be finished, but can you give me a ballpark estimate?
Variety: This idiom is typically used in American English but may be used in other varieties of English too.
She gave us a ballpark figure for the cost because she