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”

travel via aircraft

• “air travel involves too much waiting in airports”
• “if you”

the region above the ground

• “her hand stopped in mid air”
• “he threw the ball into the 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”

a slight wind (usually refreshing)

• “the breeze was cooled by the lake”
• “as he waited he could feel the air on his neck”

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”
• “;”

the mass of air surrounding the Earth

• “there was great heat as the comet entered the atmosphere”
• “it was exposed to the air”

a succession of notes forming a distinctive sequence

• “she was humming an air from Beethoven”

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

relating to or characteristic of or occurring in the air

• “air war”
• “air safety”
• “air travel”

expose to fresh air

• “aerate your old sneakers”

be broadcast

• “This show will air Saturdays at 2 P.M.”

broadcast over the airwaves, as in radio or television

• “We cannot air this X-rated song”

make public

• “She aired her opinions on welfare”

equip with armed and armored motor vehicles

• “mechanize armies”

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

• “air the old winter clothes”
• “air out the smoke-filled rooms”