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English definition of “ballpark”

ballpark

noun [C] uk   /ˈbɔːl.pɑːk/ us    /ˈbɑːl.pɑːrk/ US

ballpark

adjective [before noun] uk   /ˈbɔːl.pɑːk/ us    /ˈbɑːl.pɑːrk/ US
A ballpark estimate or figure is a number that is a guess, but one that you believe is near the correct number: We'll have to go away and cost this carefully, but as a ballpark figure I'd say that it'll be about two million dollars.
(Definition of ballpark from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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