Source : WordNet®

Mn
     n 1: a hard brittle gray polyvalent metallic element that
          resembles iron but is not magnetic; used in making
          steel; occurs in many minerals [syn: {manganese}, {atomic
          number 25}]
     2: a midwestern state [syn: {Minnesota}, {Gopher State}, {North
        Star State}]

Source : Free On-Line Dictionary of Computing

mn
     
         The {country code} for Mongolia.
     
        (1999-01-27)