aa & a

Noun

armor (countable and uncountable, plural armors)

1. (US, uncountable) A protective layer over a body, vehicle, or other object intended to deflect or diffuse damaging forces.
   • a suit of armor
2. (US, uncountable) A natural form of this kind of protection on an animal's body.

   Synonyms:

   carapace, chitin, horn

3. (US, uncountable) A metal plate, protecting a ship, military vehicle, or aircraft.

   Synonyms:

   armor plate, armour plate

4. (US, countable) A tank, or other heavy mobile assault vehicle.
5. (US, 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.2007 September 25, Bungie, Halo 3, spoken by Miranda Keyes (Justis Bolding), Microsoft Game Studios, Xbox 360, level/area: The Ark

   Synonyms:

   cavalry, mechanized, body armour, body armor, mail, chain mail, plate, suit of armour, suit of armor

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

See all 9 meanings of armor