Webster's English Dictionary

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air

Cross references:
  1. pose                   2. express               
 
1. air \'a(*)r, 'e(*)r\ n [ME, fr. OF, fr. L aer, fr. Gk ae-r] [prob. 
   trans. of It aria] often attrib  1a: the mixture of invisible odorless 
   tasteless gases (as nitrogen and oxygen) that surrounds the earth 1b: a 
   light breeze  1c: archaic : BREATH  2a: empty space  2b: NOWHERE  slang  
   2c: a sudden severance of relations  3: COMPRESSED AIR  4a: travel or 
   transportation by aircraft  4b: the medium of transmission of radio waves; 
   also : RADIO,  TELEVISION {went on the ~} 5: PUBLICITY  6a: the look, 
   appearance, or bearing of a person esp. as expressive of some personal 
   quality or emotion : DEMEANOR 6b: an artificial or affected manner : 
   HAUGHTINESS {to put on @s} 6c: outward appearance of a thing : MANNER  6d: 
   a surrounding or pervading influence : ATMOSPHERE  Elizabethan & Jacobean 
   music  7a: an accompanied song or melody in strophic form  7b: the chief 
   voice part or melody in choral music  7c: TUNE, MELODY  : not yet settled  
   - up in the air 
2. air vt 1: to expose to the air for drying, purifying, or refreshing : 
   VENTIL ATE 2: to expose to public view or bring to public notice  : to 
   become exposed to the open air