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The definition of pioneer

6 Definitions of: pioneer

    1. noun, a) a colonist, explorer, or settler of a new land, region, etc b) (as modifier)
    2. noun, an innovator or developer of something new
    3. noun, military a member of an infantry group that digs entrenchments, makes roads, etc
    4. noun, ecology the first species of plant or animal to colonize an area of bare ground
    5. verb, to be a pioneer (in or of)
    6. verb, to initiate, prepare, or open up
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