Palisade

[Sarah]

A strong, long stake, one end of which is set firmly in theground, and the other is sharpened; also, a fence formed of suchstakes set in the ground as a means of defense.

[Greta]

A fence of wooden stakes or iron railings fixed in the ground, forming an enclosure or defence.

[Gregory]

Palisade in Eventing. A cross-country obstacle that has a top rail across a row of vertical spars.