a ballpark guess: meaning and explanation
We provide a ballpark figure/estimate when we are making a guess at a number or amount, but think that our guess is close to the correct answer. e.g. My ballpark estimate is that there will be around 1500 attendees at the keynote speech.
One reason for using this idiom is to make it clear that your guess is not intended to be fully accurate, but is probably close. This is a more cautious way of estimating.
This idiom can be used after making a guess or estimate by saying that the accurate number will be somewhere in that ballpark. e.g. Our anticipated sales this Black Friday is $1.5 million, or somewhere in that ballpark.
Have a go at these micro-dictation exercises to hear this expression being used in context – how much can you understand?