1. baseball ground; baseball stadium
Wikipedia definition
2. Baseball parkA baseball park, also known as a baseball stadium, ball park, or ballpark is a venue where baseball is played. It consists of the playing field and the surrounding spectator seating. While the diamond and the areas denoted by white painted lines adhere to strict rules, guidelines for the rest of the field are flexible. The term "ballpark" sometimes refers either to the entire structure, or sometimes to just the playing field.
Read “Baseball park” on English Wikipedia
Read “野球場” on Japanese Wikipedia
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