Noun:
1: 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: air travel, aviation, air travel via aircraft; "air travel involves too much waiting in airports"; "if you've time to spare go by air"
3: air the region above the ground; "her hand stopped in mid air"; "he threw the ball into the air"
4: airwave, air medium for radio and television broadcasting; "the program was on the air from 9 til midnight"; "the president used the airwaves to take his message to the people"
5: air, zephyr, gentle wind, breeze a slight wind (usually refreshing); "the breeze was cooled by the lake"; "as he waited he could feel the air on his neck"
6: air, atmosphere, aura a distinctive but intangible quality 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"
7: 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"
8: melodic phrase, line, tune, strain, melodic line, air, melody a succession of notes forming a distinctive sequence; "she was humming an air from Beethoven"
9: air once thought to be one of four elements composing the universe (Empedocles)
Verb:
1: air, aerate, air out expose to fresh air; "aerate your old sneakers"
2: air be broadcast; "This show will air Saturdays at 2 P.M."
3: send, air, transmit, broadcast, beam broadcast over the airwaves, as in radio or television; "We cannot air this X-rated song"
4: publicize, publicise, air, bare make public; "She aired her opinions on welfare"
5: air expose to warm or heated air, so as to dry; "Air linen"
6: air, ventilate, air out, vent expose to cool or cold air so as to cool or freshen; "air the old winter clothes"; "air out the smoke-filled rooms"
Adjective:
1: air, aerial, free-flying, flying, aerial relating to or characteristic of or occurring in the air; "air war"; "air safety"; "air travel"