DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   ID
       n 1: a state in the Rocky Mountains [syn: Idaho, Gem State,
            ID]
       2: a card or badge used to identify the bearer; "you had to show
          your ID in order to get in" [syn: ID, I.D.]
       3: (psychoanalysis) primitive instincts and energies underlying
          all psychic activity