ballpark has definitions from the fields of baseball,sport
1
[ noun ] (baseball,sport) a facility in which ball games are played (especially baseball games)

Synonyms

park

Examples

"take me out to the ballpark"

Used in print

(Samuel Elkin, "The Ball Player," Nugget, 6: 5...)

Everyone in the ball_park seemed to be standing and shouting .

2
[ noun ] near to the scope or range of something

Examples

"his answer wasn't even in the right ballpark"

Related terms

scope

*