ventilation (n.)the act of supplying fresh air and getting rid of foul air;
ventilation (n.)a mechanical system in a building that provides fresh air;
she was continually adjusting the ventilation
Synonyms: ventilation system / ventilating system
ventilation (n.)free and open discussion of (or debate on) some question of public interest;
Synonyms: public discussion
ventilation (n.)the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation;
Synonyms: breathing /
external respiration /
respiration 