remark vs ventilation

remark

noun
  • A casual observation, comment, or statement 

  • make a remark 

  • An expression, in speech or writing, of something remarked or noticed; a mention of something 

  • An act of pointing out or noticing; notice or observation. 

verb
  • To express in words or writing; to state, as an observation. 

  • To make a remark or remarks on, to comment on (something). 

  • To pay heed to; notice; to take notice of, to perceive. 

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