A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.

A natural form of this kind of protection on an animal's body.

Metal plate, protecting a ship, military vehicle, or aircraft.

A tank, or other heavy mobile assault vehicle.

A military formation consisting primarily of tanks or other armoured fighting vehicles, collectively.

The naturally occurring surface of pebbles, rocks or boulders that line the bed of a waterway or beach and provide protection against erosion.

To equip something with armour or a protective coating or hardening.

To provide something with an analogous form of protection.