Any means of defence or security.
A defensive wall or rampart.
A defense or safeguard.
A breakwater.
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.
Generally, anything that provides protection.
Something that covers a wide range of concepts, purposes, groups, etc.
The main body of a jellyfish, excluding the tentacles.
A cloth-covered frame used for protection against rain or sun.
An umbrella-shaped reflector with a white or silvery inner surface, used to diffuse a nearby light.
To move like a jellyfish.
To cover or protect, as if by an umbrella.
To form the dome shape of an open umbrella.