Definition of racing noun from the Oxford Advanced American Dictionary

      

    racing

     noun
    noun
    NAmE//ˈreɪsɪŋ//
     
    [uncountable]
     
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  1. 1(also horse racing) the sport of racing horses a racing stable one of the racing world's most popular characters
  2. 2(usually in compounds) any sport that involves competing in races motor/drag, etc. racing a racing driver
See the Oxford Advanced Learner's Dictionary entry: racing