bulwark vs rig

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. 

rig

noun
  • The rigging of a sailing ship or other such craft. 

  • Special equipment or gear used for a particular purpose. 

  • An imperfectly castrated horse, sheep etc. 

  • A model outfitted with parameterized controls for animation. 

  • Radio equipment, especially a citizen's band transceiver. 

  • A costume or an outfit. 

  • A ridge. 

  • A promiscuous woman. 

  • An algebraic structure similar to a ring, but without the requirement that every element have an additive inverse. 

  • The special apparatus used for drilling wells. 

  • A large truck such as a semi-trailer truck. 

  • A personal computer, typically one modified for looks. 

verb
  • To move (a heavy object) with the help of slings, hoists, block and tackle, levers, or similar equipment. 

  • To dress or clothe in some costume. 

  • To make or construct something in haste or in a makeshift manner. 

  • To manipulate something dishonestly for personal gain or discriminatory purposes. 

  • To equip and fit (a ship) with sails, shrouds, and yards. 

  • To outfit a model with controls for animation. 

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