Definition of market leader noun from the Oxford Advanced Learner's Dictionary

     

    market leader

     noun
    noun
    BrE
     
    ; NAmE
     
     
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  1. 1the company that sells the largest quantity of a particular kind of product We are the market leader in hi-fi.
  2. 2a product that is the most successful of its kind The system is the market leader in the home PC market.
See the Oxford Advanced American Dictionary entry: market leader