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

"Pioneer space."

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."