ˌpaɪəˈnɪə 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). [F pionnier foot-soldier, pioneer, OF paonier, peon(n)ier (as PEON)]