English

Definition of inning noun from the Oxford Advanced Learner's Dictionary

 

inning

 noun
noun
BrE BrE//ˈɪnɪŋ//
 
; NAmE NAmE//ˈɪnɪŋ//
 
Baseball
 
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(in baseball) one of the nine periods of a game in which each team has a turn at batting The Chicago Cubs scored two runs in the first inning. The Chicago pitcher, Alvarez, gave up six runs in three innings. See related entries: Baseball Word Origin Old English innung ‘a putting or getting in’, related to in. The current sense dates from the mid 19th cent.
See the Oxford Advanced American Dictionary entry: inning