Definitions of ventilate:

• verb:   circulate through and freshen

  Example: "The gust of air ventilated the room"

• verb:   expose to the circulation of fresh air so as to retard spoilage

  Example: "Wheat should be well ventilated"

• verb:   furnish with an opening to allow air to circulate or gas to escape
• verb:   expose to cool or cold air so as to cool or freshen
• verb:   give expression or utterance to