DuckCorp

DuckCorp Dico

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Found one definition 

  1.                 From English - Polish Piotrowski+Saloni/FreeDict dictionary ver. 0.2:
                

    
                
                  
    OS /ˌ$⋅$ˈ$⋅$/
I.
   See also: ordinary seaman
  majtek
II.
   See also: operating system
  system operacyjny