Synonym: aerate, air out, air travel, air, airwave, atmosphere, aura, aviation, bare, beam, breeze, broadcast, gentle wind, line, melodic line, melodic phrase, melody, publicise, publicize, send, strain, transmit, tune, vent, ventilate, zephyr. Similar words: hair, pair, chair, stair, by air, unfair, fairly, impair. Meaning: [eə] 
n. 1. a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of 2. travel via aircraft 3. the region above the ground 4. medium for radio and television broadcasting 5. a slight wind (usually refreshing) 6. a distinctive but intangible quality surrounding a person or thing 7. the mass of air surrounding the Earth 8. a succession of notes forming a distinctive sequence 9. once thought to be one of four elements composing the universe (Empedocles). v. 1. expose to fresh air 2. be broadcast 3. broadcast over the airwaves, as in radio or television 4. make public 5. expose to warm or heated air, so as to dry 6. expose to cool or cold air so as to cool or freshen. adj. relating to or characteristic of or occurring in the air.
n. 1. a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of 2. travel via aircraft 3. the region above the ground 4. medium for radio and television broadcasting 5. a slight wind (usually refreshing) 6. a distinctive but intangible quality surrounding a person or thing 7. the mass of air surrounding the Earth 8. a succession of notes forming a distinctive sequence 9. once thought to be one of four elements composing the universe (Empedocles). v. 1. expose to fresh air 2. be broadcast 3. broadcast over the airwaves, as in radio or television 4. make public 5. expose to warm or heated air, so as to dry 6. expose to cool or cold air so as to cool or freshen. adj. relating to or characteristic of or occurring in the air. 
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271) You can't open the window because it screws up the air conditioning.
272) The air was fresh, courtesy of three holes in the roof.