Visuwords

http://bit.ly/visuwords-dict
If you're familiar with Visual Thesaurus, you'll have some idea of how the VisuWords online graphical dictionary displays information about a word or phrase you enter into the database. VisuWords uses color-coded connections to indicate relationships such as "is a part of" or "opposes" and parts of speech, such as "nouns", "verbs", or "adverbs". Mouse over synonyms to see pop-up definitions and an example of the word in a sentence. The no-membership-required website uses Princeton's WordNet dictionary and provides simple tips on how to get the most out of the display.