protection vs rampart

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. 

rampart

noun
  • That which defends against intrusion from outside; a protection. 

  • A defensive structure; a protective barrier; a bulwark. 

  • A defensive mound of earth or a wall with a broad top and usually a stone parapet; a wall-like ridge of earth, stones or debris; an embankment for defensive purpose. 

  • A steep bank of a river or gorge. 

verb
  • To defend with a rampart; fortify or surround with a rampart. 

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