Definition of "Air" :

noun: travel via aircraft

"Air travel involves too much waiting in airports."

noun: a distinctive but intangible quality surrounding a person or thing

"An air of mystery."

noun: medium for radio and television broadcasting

"The program was on the air from 9 til midnight."

noun: a succession of notes forming a distinctive sequence

"She was humming an air from Beethoven."

noun: the mass of air surrounding the Earth

"It was exposed to the air."

noun: the region above the ground

"Her hand stopped in mid air."

noun: a slight wind (usually refreshing)

"As he waited he could feel the air on his neck."

noun: a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of

"Air pollution."

noun: once thought to be one of four elements composing the universe (Empedocles)

verb: expose to cool or cold air so as to cool or freshen

"Air the old winter clothes."

verb: expose to warm or heated air, so as to dry

"Air linen."

verb: make public

"She aired her opinions on welfare."

verb: broadcast over the airwaves, as in radio or television

"We cannot air this X-rated song."

verb: be broadcast

"This show will air Saturdays at 2 P.M.."

verb: expose to fresh air