(also North American English, informal ump) (in sports such as tennis and baseball) a person whose job is to watch a game and make sure that rules are not broken The umpire’s decision is final. Taylor was given out by the umpire. compare referee Oxford Collocations DictionaryUmpire is used after these nouns: baseball See full entry See related entries: Tennis Word Originlate Middle English (originally as noumpere) (denoting an arbitrator): from Old French nonper ‘not equal’. The n was lost by wrong division of a noumpere; compare with adder.
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