n. & v.
--n.
1. an initiator of a new enterprise, an inventor, etc.
2 an explorer or settler; a colonist.
3 Mil. a member of an infantry group preparing roads, terrain, etc. for the main body of troops.
--v.
1. a tr. initiate or originate (an enterprise etc.). b intr. act or prepare the way as a pioneer.
2 tr. Mil. open up (a road etc.) as a pioneer.
3 tr. go before, lead, or conduct (another person or persons).
Etymology: F pionnier foot-soldier, pioneer, OF paonier, peon(n)ier (as PEON)