In baseball, the grassy area beyond the infield where the left fielder, center fielder, and right fielder play.
From 'out' + 'field'; the term developed naturally in American baseball terminology in the 1800s as the sport codified its positions and playing areas.
The Green Monster in Boston's Fenway Park (the left field wall) is only 315 feet from home plate, making it the closest outfield wall in baseball—home runs that would be outs elsewhere become dingers there.
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