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Definition of pioneer noun from the Oxford Advanced American Dictionary

     

    pioneer

     noun
    noun
    NAmE//ˌpaɪəˈnɪr//
     
     
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  1. 1pioneer (in/of something) a person who is the first to study and develop a particular area of knowledge, culture, etc. that other people then continue to develop synonym trailblazer a pioneer in the field of microsurgery a computer pioneer a pioneer aviator a pioneer design (= one that introduces new ideas, methods, etc.)
  2. 2one of the first people to go to a particular area in order to live and work there the pioneer spirit
See the Oxford Advanced Learner's Dictionary entry: pioneer

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