Wordnik has the look and feel of a traditional dictionary with a twist. Along with the definition, students can see images related to the word, hear related sounds, and even see tweets with the target word highlighted. The “related words” feature is particularly helpful. Wordnik also features a “Word of the Day,” “Random Words,” and pronunciations of words.
Lexipedia is a simple to use visual thesaurus. Just type in any word and Lexipedia instantly displays the target word along with other words. It also color-codes the words by both parts of speech and relationships. As you hover over a word, a complete definition is displayed.http://www.lexipedia.com/english/technology