VisuWords.com – Online Graphical Dictionary
VisuWords is an online dictionary very unlike any of the others. When you first log onto it, it seems like the home page of a science ficton novelist, there is a nucleus that starts spawning other nodes with labels on them.
The amazing thing is, is that when you use this dictionary, it is not necessarily to understand the meaning of the word you look up, it is to understand all of the other words the derive from that word. So if you go to the site and type in car, the nucleus (if you will) will be car, and everything coming out from the word car will be shown: cable car, patrol car, gondola, airbag, floorboard etc, and if you place your mouse above the word it will give you the definition of each.
