WordNet 2.0 is available in 2 ways: online and downloadable file. It includes more than 42,000 links between nouns and verbs that are related to each other and has a focus on Terrorism! The Global WordNet Association provides a platform for discussing, sharing and connecting WordNets all around the world. The aim of the association is to promote the WordNets for all languages in the world. They have some contributors for Iranian languages.
Personally, I think WordNet is useful for people who need to learn more about English words and names, especially if they want to run a deep search. Try a familiar term like “library” at the Online WordNet 2.0 and see the results.
The Global Wordnet Association(GWA): http://www.globalwordnet.org/