GBGoffice provides an easy to use GTK interface for the dictionaries from the Bulgarian Office project. It supports all five of them: - English <=> Bulgarian - Polytechnical - Computer Terms - Thesaurus - Dialect If you are using KDE, you might want to try kbgoffice (QT4 interface), instead. This requires libsigc++ and gtkmm. As a runtime dependency, full-pack is needed (dictionaries data).