ballpark

Noun

ball=park

WORDNET DICTIONARY

ballpark(n = noun.artifact) park - a facility in which ball games are played (especially baseball games); "take me out to the ballpark"

has parts: ball field, baseball field, diamond, bullpen, dugout, stand

is a kind of arena, bowl, sports stadium, stadium

ballpark(n = noun.attribute) approximate range - near to the scope or range of something; "his answer wasn't even in the right ballpark"

is a kind of ambit, compass, orbit, range, reach, scope

ballpark, n. US 1 a baseball ground.
2 (attrib.) colloq. approximate, rough (a ballpark figure).

Idiom

in the right ballpark colloq. close to one's objective; approximately correct.

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