AIR

I. noun Usage: often attributive Etymology: Middle English, from Anglo-French, from Latin aer, from Greek aēr Date: 14th century 1. breath , the mixture of invisible odorless tasteless gases (as nitrogen and oxygen) that surrounds the earth, a light breeze, 2. empty space, nothingness , a sudden severance of relations , 3. \probably translation of Italian aria] tune , melody , an accompanied song or melody in usually strophic form, the chief voice part or melody in choral music, 4. outward appearance of a thing , a surrounding or pervading influence ; atmosphere , the look, appearance, or bearing of a person especially as expressive of some personal quality or emotion ; demeanor , an artificial or affected manner , public utterance , compressed ~ , 7. a. ~craft , aviation , ~ force , b. the medium of transmission of radio waves, ~time , a football offense utilizing primarily the forward pass , an ~-conditioning system, the height achieved in performing an aerial maneuver , see: pose ~less adjective ~lessness noun II. verb Date: 1530 transitive verb to expose to the ~ for drying, purifying, or refreshing ; ventilate , to expose to public view or bring to public notice, to transmit by radio or television , intransitive verb to become exposed to the open ~, to become broadcast , see: express