air out vs circulate

air out

verb
  • To throw passes, especially long and high passes. 

  • To expose to air; to leave open or spread out, as to allow odor or moisture to dissipate. 

  • To discuss in the open; to address an issue or conflict that has long been avoided. 

circulate

verb
  • to move in circles or through a circuit 

  • Of decimals: to repeat. 

  • to cause (a person or thing) to move in circles or through a circuit 

  • to become widely known 

  • to move from person to person, as at a party 

  • to spread or disseminate 

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