Word Dynamo

Created by the good people at Dictionary.com, Word Dynamo is a great site for expanding one's vocabulary.  Users can answer ten questions and Word Dynamo will estimate the number of words they know. This customizes the level at which the user starts a 20-level vocabulary learning game.  Users can also search through Word Dynamo for specific types of words they need to learn or for a grade span level of words.  Students can also create their own sets of words and definitions.  There are also a variety of ways to learn these vocabulary words ranging from matching to crossword puzzles.  This would be a great site for students to go to when they are finished with their work early.   http://dynamo.dictionary.com/