A defense or safeguard.
A defensive wall or rampart.
A breakwater.
Any means of defence or security.
The planking or plating along the sides of a nautical vessel above her gunwale that reduces the likelihood of seas washing over the gunwales and people being washed overboard.
To fortify something with a wall or rampart.
To provide protection of defense for something.
Struggle for superiority; combat.
Controversy; debate.
A competition.
To strive earnestly to hold or maintain; to struggle to defend.
To call into question; to oppose.
To make a subject of litigation; to defend, as a suit; to dispute or resist, as a claim, by course of law.
To contend.