To provide protection of defense for something.
To fortify something with a wall or rampart.
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 ward off attacks against; to fight to protect; to guard.
To focus one's energies and talents on preventing opponents from scoring, as opposed to focusing on scoring.
To attempt to retain a title, or attempt to reach the same stage in a competition as one did in the previous edition of that competition.
To call a raise from the big blind.
To support by words or writing; to vindicate, talk in favour of.
To make legal defence of; to represent (the accused).