Jisho

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Noun
1. four balls; base on balls; a walkBaseball
Wikipedia definition
2. Base on ballsA base on balls (BB) is credited to a batter and against a pitcher in baseball statistics when a batter receives four pitches that the umpire calls balls. It is better known as a walk. The base on balls is defined in Section 2.00 of baseball's Official Rules, and further detail is given in 6.08(a).
Read “Base on balls” on English Wikipedia
Read “四球” on Japanese Wikipedia
Read “Base on balls” on DBpedia

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