Welcome to the Open Multilingual Wordnet (OMW) project. The goal of this project is to make it easy to use wordnets in multiple languages. We have been working for many years to make a shared format and link the wordnets together. OMW and its components are open: they can be freely used, modified, and shared by anyone for any purpose. There is a fuller list of wordnets at the Global Wordnet Association's Wordnets in the World page.
If you use these wordnets, please cite the original projects who created them, if you got value from this aggregation/normalization, please cite Bond and Paik (2012).
There are currently two versions of the OMW.
Source code hosted at https://github.com/omwn/omwn.github.io.