If you think visually, check out www.visualthesaurus.com. It's available as a CD or online by subscription, but you take the product tour for free. Also, you can type in a word of your choice to see how it works. That's free, too. This inventive tool is both a thesaurus and a dictionary, and it includes more than 145,000 words. Its interactive display lets you see connections and relationships among words. In addition, it gives synonyms and antonyms, and it includes pronunciations.