pioneer Meaning in Cambridge American English Dictionary
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Meaning of "pioneer" - American English Dictionary

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pioneernoun [C]

 us   /ˌpɑɪ·əˈnɪər/
a person who is among the first to study or develop something: He was a pioneer in big-band jazz. US history A pioneer is also a person who is among the first to enter and live in an area, esp. European Americans in the western US: The pioneers made their way across the desert.
pioneer
verb [T]  us   /ˌpɑɪ·əˈnɪər/
He pioneered the design of the Internet.
(Definition of pioneer from the Cambridge Academic Content Dictionary © Cambridge University Press)
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