Gillian Barton came across this brilliant site and sent us the link: http://www.visuwords.com/
Visuwords™ online graphical dictionary — Look up words to find their meanings and associations with other words and concepts. Produce diagrams reminiscent of a neural net. Learn how words associate.
Enter words into the search box to look them up or double-click a node to expand the tree. Click and drag the background to pan around and use the mouse wheel to zoom. Hover over nodes to see the definition and click and drag individual nodes to move them around to help clarify connections.
* It’s a dictionary! It’s a thesaurus!
* Great for writers, journalists, students, teachers, and artists.
* The online dictionary is available wherever there’s an internet connection.
* No membership required.
Visuwords™ uses Princeton University’s WordNet, an opensource database built by University students and language researchers. Combined with a visualization tool and user interface built from a combination of modern web technologies, Visuwords™ is available as a free resource to all patrons of the web.