Dictionary
bill•board
Pronunciation: (bil'bôrd", -bōrd"), [key]—
n.
a flat surface or board, usually outdoors, on which large advertisements or notices are posted.
—
v.t.
to place, advertise, proclaim, etc., on or as if on a billboard:
The movie was billboarded as the year's biggest hit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.