If you would like to write "word/codes" for Lexicon, you will need some knowledge of the Java language. The Lexicon Development Kit contains a basic framework for writing code modules using this language. Example modules are provided with support files for testing them. Review criteria are outlined in the README. Approved modules will be documented and added to the main modules list, with credit given to the author. Lexicon's source code is distributed freely for non-commercial use under the terms of the GNU Public License version 2. The code is documented for programmers here. Further questions can be sent via email.