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pioneer

/ˌpaɪəˈnɪəɹ/
noun
  1. One who goes before, as into the wilderness, preparing the way for others to follow.

  2. A person or other entity who is first or among the earliest in any field of inquiry, enterprise, or progress.

    "Certain politicians can be considered as pioneers of reform."

  3. A soldier detailed or employed to form roads, dig trenches, and make bridges, as an army advances; a sapper.

verb
  1. To be the first to do or achieve (something), preparing the way for others to follow.

    "The young doctor pioneered a new life-saving surgical technique."

Synonymsbreak new ground, push the envelope

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