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

an impression of a quality or manner given by someone or something

she answered with a faint air of boredom

he leaned over with a confidential air

a tune or short melodious song

traditional Scottish airs sung in the Gaelic tongue

a jump off the ground on a snowboard or skateboard

express (an opinion or grievance) publicly

a meeting in which long-standing grievances were aired

expose (a room) to the open air in order to ventilate it

the window sashes were lifted regularly to air the room