fortification consisting of a strong fence made of stakes driven into the ground(noun.artifact)
source: wordnet30
A strong, long stake, one end of which is set firmly in the ground, and the other is sharpened; also, a fence formed of such stakes set in the ground as a means of defense.(noun)
source: webster1913
A line of bold cliffs, esp. one showing basaltic columns; -- usually in pl., and orig. used as the name of the cliffs on the west bank of the lower Hudson.(noun)
source: webster1913
verb (v)
surround with a wall in order to fortify(verb.competition)