Taken from their website:

TshwaneLex is a professional, feature-rich, fully internationalised, off-the-shelf software application suite for compiling dictionaries or terminology lists. It has been adopted by many major publishers, government organisations and individuals across the world, as it delivers excellent ROI.

TshwaneLex contains many specialized features that allow you to dramatically reduce dictionary production time and increase the quality and consistency of your dictionaries (from single-user projects to large teams). These include an integrated Corpus Query System, real-time preview, full customisability, advanced styles system, "smart cross-references" with tracking and auto-updating, automated lemma reversal, automated numbering and sorting, export to MS Word and typesetting systems (such as InDesign, Quark and XPP), multi-user support for managing teams, and much more. Publish to hardcopy, Web, or CD-ROM / software.

TshwaneLex supports virtually all of the world's languages (over 6000 languages), and is based on industry standards such asXML and Unicode.