armor

Etymology

From Middle English armure, armour, armor, armeure, borrowed from Anglo-Norman armure and Old French armeüre, from Latin armātūra. Doublet of armature and armure.

noun

1. (uncountable) A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
2. (uncountable) A natural form of this kind of protection on an animal's body.
3. (uncountable) Metal plate, protecting a ship, military vehicle, or aircraft.
4. (countable) A tank, or other heavy mobile assault vehicle.
5. (military, uncountable) A military formation consisting primarily of tanks or other armoured fighting vehicles, collectively.
   Good work, Chief. Link up with our armor on the far side of the wall. 25 September 2007, Bungie, Halo 3, v1.0, Microsoft Game Studios, [[w:Xbox 360, level/area: The Ark|Xbox 360, level/area: The Ark]]
6. (hydrology, uncountable) The naturally occurring surface of pebbles, rocks or boulders that line the bed of a waterway or beach and provide protection against erosion.

verb

1. (transitive) To equip something with armor or a protective coating or hardening.
2. (transitive) To provide something with an analogous form of protection.