armor vs protection

armor

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

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

  • 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. 

verb
  • To equip something with armor or a protective coating or hardening. 

  • To provide something with an analogous form of protection. 

protection

noun
  • A means of keeping or remaining safe. 

  • Coverage. 

  • The process of keeping (something or someone) safe. 

  • The state of being safe. 

  • An instance of a security token associated with a resource (such as a file). 

  • Restrictions on foreign competitors which limit their ability to compete with domestic producers of goods or services. 

  • A means, such as a condom, of preventing pregnancy or sexually transmitted disease. 

  • Immunity from harm, obtained by illegal payments, as bribery or extortion. 

How often have the words armor and protection occurred in a corpus of books? (source: Google Ngram Viewer )