Worder is an English dictionary based on wordnik - https://www.wordnik.com/ and the UrbanDictionary - http://urbandictionary.com
Simply lookup for your word and get its definition, pronunciation, related words and usage examples. A couple of related images are displayed as well. In case you're bored, just roll the dice and get a random word.
Many more features are planned for the future. Suggestions are always welcome.