Palisade

v. fence in, surround with a fence; fortify with fences, protect with walls

n. fence made from stakes, protective fence made from poles that are inserted into the ground; line of cliffs, row of bluffs

n. city in Colorado (USA)

A palisade is a steel or wooden fence or wall of variable height, used as a defensive structure. Typical construction consisted of small or midsized trunks of trees aligned vertically, with no spacing in between. The trunks would be driven into the ground, and would sometimes be reinforced with additional construction. The height of a palisade can range from a few feet or more to nearly ten feet. As a defensive structure, palisades were often used in conjunction with earthworks.
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Noun
1. fortification consisting of a strong fence made of stakes driven into the ground
(hypernym) fortification, munition
(derivation) wall, fence, fence in, surround
Verb
1. surround with a wall in order to fortify
(synonym) wall, fence, fence in, surround
(hypernym) protect
(hyponym) stockade

n. palisade, fence made from stakes; protective fence made from poles that are inserted into the ground; stockade, wall, enclosure, defense barrier

(v. t.)
To surround, inclose, or fortify, with palisades.
  

(n.)
Any fence made of pales or sharp stakes.
  

(n.)
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.