1. (noun)air a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
"air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air"
2. (noun)air the regionabove the ground "her hand stopped in mid air"; "he threw the ball into the air"
3. (noun)air, aura, atmosphere a distinctive but intangiblequality surrounding a person or thing "an air of mystery"; "the house had a neglected air"; "an atmosphere of defeat pervaded the candidate's headquarters"; "the place had an aura of romance"
4. (noun)breeze, zephyr, gentle wind, air a slightwind (usually refreshing)
"the breeze was cooled by the lake"; "as he waited he could feel the air on his neck"
5. (noun)atmosphere, air the mass of air surrounding the Earth "there was great heat as the comet entered the atmosphere"; "it was exposed to the air"
7. (noun)tune, melody, air, strain, melodic line, line, melodic phrase a succession of notes forming a distinctive sequence "she was humming an air from Beethoven"
8. (noun)air, airwave medium for radio and televisionbroadcasting "the program was on the air from 9 til midnight"; "the president used the airwaves to take his message to the people"
9. (noun)air travel, aviation, air travel via aircraft "air travel involves too much waiting in airports"; "if you've time to spare go by air"
10. (verb)air out, air, aerate expose to fresh air
"aerate your old sneakers"
11. (verb)air be broadcast "This show will air Saturdays at 2 P.M."
12. (verb)air, send, broadcast, beam, transmit broadcastover the airwaves, as in radio or television "We cannot air this X-rated song"
13. (verb)publicize, publicise, air, bare makepublic "She aired her opinions on welfare"
14. (verb)air expose to warm or heated air, so as to dry
"Air linen"
15. (verb)vent, ventilate, air out, air expose to cool or cold air so as to cool or freshen
"air the old winter clothes"; "air out the smoke-filled rooms"