pioneer - definition and synonyms

noun [countable] 

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  1. 1
    one of the first people to do something important that is later continued and developed by other people
    pioneer of:

    the pioneers of early colour photography

    pioneer in:

    The firm has been a pioneer in the pharmaceutical field since 1953.

  2. 2
    one of the first people to travel to a new country and start living there, especially one of the first Europeans to start living in North America