A fortification made in haste, of trees, earth, palisades, wagons, or any thing that will obstruct the progress of an enemy, or serve for defense or security, against his shot.

Any bar or obstruction; that which defends.

In naval architecture, a strong wooden rail, supported by stanchions, extending across the foremost part of the quarter deck, in ships of war, and filled with rope, mats, pieces of old cable, and full hammocks, to prevent the effect of small shot in time of action.

To stop up a passage; to obstruct.

To fortify with any slight work that prevents the approach of an enemy.