Definition of "armor" in English

noun

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

   • a suit of armor

2. (uncountable) A natural form of this kind of protection on an animal's body.

3. (uncountable) A 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.

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.