Pioneer

Pioneer (from Old French peon "foot soldier") may refer to:people who traveled west from all around the world

a Combat Engineer or sapper
a Settler, one who has travelled from his or her homeland by choice to live in a "new" land or colony, in particular referring to the American Old West
Pioneer plant, a plant adapted to the extreme environment of an otherwise barren location
The Pioneer, a painting by Frederick McCubbin
Pioneer Island, part of the Severnaya Zemlya archipelago in the Kara Sea, north of Russia
specific organisations:

A member of the Young Pioneer organization of the Soviet Union
Pioneer Movement, a communist youth movement
Pionyr, a democratic, voluntary and independent organisation of children, youth and adult people in Czech Republic
Mormon Pioneer, a member of the Church of Jesus Christ of Latter-day Saints who crossed the Great Plains
Halutz, a number of idealist movements for Jews to settle in Palestine (between 1881 and 1947), or an individual active in the physical development of the Land in that period. Bilu is a notable example.
Pioneer, a term used by Jehovah's Witnesses to describe someone who is in the full-time volunteer ministry work
A member of the Pioneer Total Abstinence Association, an Irish organisation for Roman Catholic Teetotallers
A donor who raised more than $100,000 for one of George W. Bush's Presidential campaigns.
Pioneer Football Club- AFL Football Club participating in the Central Australian Football League (CAFL) in the Northern Territory
vehicles:

Pioneer program, a series of space probes, partly from the US Armed Forces, partly from NASA's Ames Research Center
Pioneer 10 and Pioneer 11 space probes
Pioneer (locomotive), the first locomotive to operate in Chicago
Pioneer (Amtrak), a Chicago-Seattle passenger train run by Amtrak until 1997
Pioneer (robot), a robot developed in China
RQ-2 Pioneer, an unmanned aerial vehicle (UAV), developed by USA and Israel
RT-21M Pioneer, a medium-range ballistic missiles

popular culture and brand names:

Pioneer Corporation, a Japanese company that produces consumer electronics
Geneon, formerly Pioneer Entertainment, the multimedia arm of Pioneer Corporation
Pioneer Hi-Bred International, Inc., an agricultrual company, which is part of DuPont
The Pioneer (daily), an English language newspaper published from Delhi, India
"Pioneers", a song by Bloc Party from their album Silent Alarm (album)
Pioneer Records, a small indie label based in the UK