Source : Free On-Line Dictionary of Computing

simultaneous shipment
     
         (simship) The release of international,
        {localised} versions of software at the same time, or within a
        short period of time of the original release.
     
        Major software publishers can release as many as 30 different
        localised versions within a month or two of the original
        version.  These products may have thousands of pages of
        {documentation}.
     
        (1999-06-09)