bulwark vs landing

bulwark

noun
  • The planking or plating along the sides of a nautical vessel above her gunwale that reduces the likelihood of seas washing over the gunwales and people being washed overboard. 

  • A defensive wall or rampart. 

  • A defense or safeguard. 

  • A breakwater. 

  • Any means of defence or security. 

verb
  • To fortify something with a wall or rampart. 

  • To provide protection of defense for something. 

landing

noun
  • A place on a shoreline where a boat lands. 

  • An arrival at a surface, as of an airplane or any descending object. 

  • A level area at the top of a flight of stairs, or connecting one flight with another. 

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