atmosphere in WordNet English dictionary

1. 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's headquarters"; "the place had an aura of romance"
   air  aura  atmosphere 
   
2. the mass of air surrounding the Earth
   "there was great heat as the comet entered the atmosphere"; "it was exposed to the air"
   atmosphere  air 
   
3. a particular environment or surrounding influence
   "there was an atmosphere of excitement"
   atmosphere  ambiance  ambience 
   
4. a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
   standard atmosphere  atmosphere  atm  standard pressure 
   
5. the envelope of gases surrounding any celestial body
   atmosphere 
   
6. the weather or climate at some place
   "the atmosphere was thick with fog"
   atmosphere  atmospheric state