Stockade

Part of speech: noun (n.)

1. A line of stout posts or timbers set firmly in the earth in contact with each other (and usually with loopholes) to form a barrier, or defensive fortification. [Written also stoccade.]

2. An inclosure, or pen, made with posts and stakes.

Part of speech: verb (v.)

To surround, fortify, or protect with a stockade.