blockage vs shutdown

blockage

noun
  • The state or condition of being blocked. 

  • Synonym of constipation (“impairment of feces passage”). 

  • The thing that is the cause of such a state, blocking a passage. 

  • Synonym of thrombosis, synonym of thromboembolism, or synonym of embolism. 

shutdown

noun
  • The action of stopping operations; a closing, of a computer, business, event, etc. 

  • A statement, insult, etc. that prevents the opponent from replying further. 

  • An autistic response to stress or sensory overload, in which the individual freezes up and becomes silent, motionless, and unresponsive. 

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