The Visual Thesaurus is an interactive dictionary and thesaurus which creates word maps that blossom with meanings and branch to related words. Its display encourages exploration and learning. Available both as a desktop version and a web version. Additional features of Visual Thesaurus include Spelling Bee and Vocab Grabber. Spelling Bee: User is challenged by a series of words, with the spelling difficulty adapted to the user's individual skill level.
VocabGrabber analyzes any text you're interested in, generating lists of the most useful vocabulary words and showing you how those words are used in context. Just copy text from a document and paste it into the box, and then click on the "Grab Vocabulary!" button. VocabGrabber will automatically create a list of vocabulary from your text, which you can then sort, filter, and save. Select any word on the list and you'll see a snapshot of the Visual Thesaurus map and definitions for that word, along with examples of the word in your text.