Available Definitions:
1) n. - A rampart; a fortification; a bastion or outwork.
2) n. - That which secures against an enemy, or defends from attack; any means of defense or protection.
3) n. - The sides of a ship above the upper deck.
4) v. t. - To fortify with, or as with, a rampart or wall; to secure by fortification; to protect.