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English definition of “pioneer”

pioneer

noun [C]     /ˌpaɪəˈnɪər/ US  /-ˈnɪr/
C2 a person who is one of the first people to do something: one of the pioneers of modern science a pioneer heart surgeonInventing, designing and innovationCreating and producing a person who goes to an area and builds a house, begins a farm, etc.: The pioneers went west across North America, cutting down forests and planting new crops.Travellers and visitors
(Definition of pioneer noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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