blockage vs corridor

blockage

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

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

  • The state or condition of being blocked. 

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

corridor

noun
  • A narrow hall or passage with rooms leading off it, as in a building or in a railway carriage. 

  • Airspace restricted for the passage of aircraft. 

  • The covered way lying round the whole compass of the fortifications of a place. 

  • The land near an important road, river, railway line 

  • A restricted tract of land that allows passage between two places. 

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