1 [mass noun] the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen. air regarded as necessary for breathing:the air was stale the doctor told me to get some fresh air the free or unconfined space above the surface of the earth:he celebrated by tossing his hat high in the air [usually as modifier] referring to the use of aircraft:air travel all goods must come in by air the earth’s atmosphere as a medium for transmitting radio waves:radio stations have successfully sold products over the air one of the four elements in ancient and medieval philosophy and in astrology (considered essential to the nature of the signs of Gemini, Aquarius, and Libra): [as modifier]:an air sign [count noun] a breeze or light wind.
2an 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
) an annoyingly affected and condescending manner:he began to put on airs and think he could boss us around
3 Music a tune or short melodious song: traditional Scottish airs sung in the Gaelic tongue
4a jump off the ground on a snowboard or skateboard. 1express (an opinion or grievance) publicly:a meeting in which long-standing grievances were aired broadcast (a programme) on radio or television:the programmes were aired on India’s state TV network archaic parade or show (something) ostentatiously: he took the opportunity of airing his knowledge of antiquity
2British expose (a room) to the open air in order to ventilate it:the window sashes were lifted regularly to air the room warm (washed laundry) to remove dampness: I was airing the sheets
) archaic go out in the fresh air:to go and air myself in my native fields