chat vs ventilation

chat

noun
  • A conversation to stop an argument or settle a situation. 

  • A louse (small, parasitic insect). 

  • Any of various small Old World passerine birds in the muscicapid tribe Saxicolini or subfamily Saxicolinae that feed on insects. 

  • A chat room. 

  • An exchange of text or voice messages in real time through a computer network, resembling a face-to-face conversation. 

  • A small potato, such as is given to swine. 

  • Mining waste from lead and zinc mines. 

  • Informal conversation. 

  • The entirety of users in a chat room or a single member thereof. 

  • Any of several small Australian honeyeaters in the genus Epthianura. 

verb
  • To talk more than a few words. 

  • To talk of; to discuss. 

  • To be engaged in informal conversation. 

  • To exchange text or voice messages in real time through a computer network, as if having a face-to-face conversation. 

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 chat and ventilation occurred in a corpus of books? (source: Google Ngram Viewer )