A defensive wall or rampart.
A defense or safeguard.
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.
The violation of a person's reputation, rights, property, or interests.
Damage to the body of a living thing.
Other forms of damage sustained by a living thing, e.g. psychologically.