Definition of "Pioneer" :
noun: one of the first colonists or settlers in a new territory
"They went west as pioneers with only the possessions they could carry with them."
noun: someone who helps to open up a new line of research or technology or art
verb: open up and explore a new area
verb: take the lead or initiative in; participate in the development of
"This South African surgeon pioneered heart transplants."
verb: open up an area or prepare a way
"She pioneered a graduate program for women students."