1. the act of supplying fresh air and getting rid of foul air

Similar word(s): airing

Definition categories: act, improvement

2. a mechanical system in a building that provides fresh air

- she was continually adjusting the ventilation

Definition categories: man–made

3. free and open discussion of (or debate on) some question of public interest

Definition categories: communication, discussion, word

4. the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation

Similar word(s): breathing, respiration

Definition categories: act, activity