air

(noun) a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of. Examples: "Air pollution." "A smell of chemicals in the air." "Open a window and let in some air." "I need some fresh air."

(noun) the region above the ground. Examples: "Her hand stopped in mid air." "He threw the ball into the air."

(noun) a distinctive but intangible quality surrounding a person or thing. Synonyms: aura, atmosphere. Examples: "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."

(noun) a slight wind (usually refreshing). Synonyms: breeze, zephyr, gentle wind. Examples: "The breeze was cooled by the lake." "As he waited he could feel the air on his neck."

(noun) the mass of air surrounding the Earth. Synonyms: atmosphere. Examples: "There was great heat as the comet entered the atmosphere." "It was exposed to the air."

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

(noun) a succession of notes forming a distinctive sequence. Synonyms: tune, melody, strain, melodic line, line, melodic phrase. Example: "She was humming an air from beethoven."

(noun) medium for radio and television broadcasting. Synonyms: airwave. Examples: "The program was on the air from 9 til midnight." "The president used the airwaves to take his message to the people."

(noun) travel via aircraft. Synonyms: air travel, aviation. Examples: "Air travel involves too much waiting in airports." "If you've time to spare go by air."

(verb) expose to fresh air. Synonyms: air out, aerate. Example: "Aerate your old sneakers."

(verb) be broadcast. Example: "This show will air saturdays at 2 p.m.."

(verb) broadcast over the airwaves, as in radio or television. Synonyms: send, broadcast, beam, transmit. Example: "We cannot air this x-rated song."

(verb) make public. Synonyms: publicize, publicise, bare. Example: "She aired her opinions on welfare."

(verb) expose to warm or heated air, so as to dry. Example: "Air linen."

(verb) expose to cool or cold air so as to cool or freshen. Synonyms: vent, ventilate, air out. Examples: "Air the old winter clothes." "Air out the smoke-filled rooms."