definition of
air

[1] #1 air n. 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". wn

[2] #2 air n. the region above the ground; "her hand stopped in mid air"; "he threw the ball into the air". wn

[3] #3 air n. [aura, atmosphere] 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". wn

[4] #4 air n. [breeze, zephyr, gentle wind] a slight wind (usually refreshing); "the breeze was cooled by the lake"; "as he waited he could feel the air on his neck". wn

[5] #5 air v. [air out, aerate] expose to fresh air; "aerate your old sneakers". wn