Defensive arms for the body; any clothing or covering worn to protect one's person in battle.
- A defensive covering, as of metal, wood, or leather, worn to protect the body against weapons.
- A tough, protective covering, such as the bony scales covering certain animals or the metallic plates on tanks or warships.
- A safeguard or protection: faith, the missionary's armor.
- The combat arm that deploys armored vehicles, such as tanks.
- The armored vehicles of an army.
- To cover with armor.