Source : Webster's Revised Unabridged Dictionary (1913)

AE \[AE]\ or Ae \Ae\
   A diphthong in the Latin language; used also by the Saxon
   writers. It answers to the Gr. ai. The Anglo-Saxon short [ae]
   was generally replaced by a, the long [=ae] by e or ee. In
   derivatives from Latin words with ae, it is mostly superseded
   by e. For most words found with this initial combination, the
   reader will therefore search under the letter E.

Source : Free On-Line Dictionary of Computing

AE
     
        {Application Executive}

ae
     
         The {country code} for the United Arab Emirates.
     
        (1999-01-27)