blockage vs flowing

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. 

flowing

adj
  • Moving, proceeding or shaped smoothly, gracefully, or continuously. 

  • Tending to flow. 

noun
  • The action of the verb to flow 

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