Kayla Gregory, one of my graduate students sent me this link
Springwise: Video dictionary with a wiki touch
Launched two weeks ago, Wordia is a visual dictionary that encourages members of the public to contribute to a collective pool of video definitions. As with any online dictionary, users can search for the traditional meaning of a word thanks to the involvement of HarperCollins with 76,000 words and 120,000 basic textual definitions. But appended to an increasing number of those traditional definitions are videos—both professionally produced and user-generated—expressing individuals’ own, personal meanings for the words in question. Look up “purple,” for instance, and two young “orators” tell you that it means “wacky… and kinda deep and mysterious… spiritual… agitated… royal… eggplant?” Search on “nascent,” and you’ll get a video definition featuring Michael Birch, the Bebo founder who is now supporting Wordia.