1. [n]  a facility in which ball games are played (especially baseball games); "take me out to the ballpark"
2. [n]  near to the scope or range of something; "his answer wasn't even in the right ballpark"
3. [adj]  not quite exact or correct; "the approximate time was 10 o'clock"; "a rough guess"; "a ballpark estimate"

BALLPARK is a 8 letter word that starts with B.