palisade

Short definition from Wiktionary

Noun

1. 1
   A long, strong stake, one end of which is set firmly in the ground, and the other sharpened.
2. 2
   A wall of wooden stakes, used as a defensive barrier.
3. 3
   A line of cliffs, especially one showing basaltic columns.
4. 4
   An even row of cells, e.g., palisade mesophyll cells.

Verb

1. 1
   To equip with a palisade.

Proper noun

1. 1
   A town in Mesa County, Colorado, United States.