noun

The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.

The surface tension of water is increased, and even the density of air surrounding the Earth ebbs and flows like the tides in the sea.

verb

Express (an opinion or grievance) publicly.

a meeting in which long-standing grievances were aired

express,voice,make public,vent,ventilate,articulate,state,declare,give expression to,give voice to