wnbrowser is a tool for visually browsing the WordNet lexical database of English. Words are displayed as a graph, which can be interactively expanded to discover related words and concepts.
java -Dwordnet.database.dir=<WordNet dict directory> -jar wnbrowser.jar
wnbrowser is written in the Scala language using the JUNG Graph visualization library and the JAWS Java WordNet API.
The source code may be downloaded by clicking this link. This code is released using the same BSD license as JUNG.