The English thesaurus included with most versions of OpenOffice.org: en,AU,th_en_US,English (Australia),thes_en_US.zip en,CA,th_en_US,English (Canada),thes_en_US.zip en,NZ,th_en_US,English (New Zealand),thes_en_US.zip en,GB,th_en_US,English (United Kingdom),thes_en_US.zip en,US,th_en_US,English (United States),thes_en_US.zip Can be registered in the following manners in dictionary.lst, depending on the language you usually use: THES en AU thes_en_US THES en CA thes_en_US THES en NZ thes_en_US THES en GB thes_en_US THES en US th_en_US There may be differences but for these, new additions should go in a smaller unique dictionary.