powwow vs ventilation

powwow

noun
  • A Native American council or meeting. 

  • A large gathering during which Indigenous songs and dances are showcased for an audience, essentially a recital or concert. Often also doubles as a fundraiser, or can be held in conjunction with a non-indigneous fair or exhibition in order to attract a large crowd, as at the Calgary Stampede and K-Days. 

  • A short, private conference. 

  • A ritual conducted by a Native American shaman. 

  • A Native American shaman. 

verb
  • To conduct a ritual in which magic is used. 

  • To hold a private conference. 

  • To hold a meeting; to gather together in council. 

ventilation

noun
  • An exchange of views during a discussion. 

  • The bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide. 

  • The mechanical system used to assist breathing. 

  • The replacement of stale or noxious air with fresh. 

  • The public exposure of an issue or topic. 

  • The mechanical system used to circulate and replace air. 

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