Dictionary between The Vulcan Language Dictionary Free Online Translation
The Universal Translator Assistant Project
The Universal Translator Assistant Project is the first, and to my knowledge only, open source translation tool for a variety of Science Fiction languages (Klingon, Vulcan, Romulan, and Rihansu).
Vulcan Language Dictionary
Vulcan Language Dictionary (VLD) Compiled by Selek from Vulcan Language Institute, Marketa Z., Star Trek episodes and Movies