WordWeb Online

1. The act of supplying fresh air and getting rid of foul air
   - airing
    
2. A mechanical system in a building that provides fresh air
   "she was continually adjusting the ventilation";
   - ventilation system, ventilating system
    
3. Free and open discussion of (or debate on) some question of public interest
   - public discussion
    
4. The bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
   - breathing, external respiration, respiration

Derived forms: ventilations

Type of: activity, bodily function, bodily process, body process, discussion, give-and-take, improvement, mechanical system, word

Encyclopedia: Ventilation