aura 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. an indication of radiant light drawn around the head of a saint
   aura  aureole  halo  nimbus  glory  gloriole 
   
3. a sensation (as of a cold breeze or bright light) that precedes the onset of certain disorders such as a migraine attack or epileptic seizure
   aura