I. pion intransitive verb
( -ed/-ing/-s )
Etymology: Middle French pioner, pionner, from peon, pion foot soldier, pioneer — more at pioneer
obsolete : to dig or excavate as a pioneer
II. pi·on ˈpīˌän noun
( -s )
Etymology: by contraction
: pi-meson
I. pion intransitive verb
( -ed/-ing/-s )
Etymology: Middle French pioner, pionner, from peon, pion foot soldier, pioneer — more at pioneer
obsolete : to dig or excavate as a pioneer
II. pi·on ˈpīˌän noun
( -s )
Etymology: by contraction
: pi-meson
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012