Sesame Street Alphabet Kitchen - Entertaining vocabulary-building app to help children with early literacy skills.
Urban Dictionary - Urban Dictionary is a Web-based dictionary of slang words and phrases.
ABC Kids - Fun, tracing and phonics app to teach kids the English alphabet.
Hinglish Dictionary - HinglishDictionary.com is an archive of user submitted Hinglish words. Users can register and create accounts and add new words, that must have a touch of Hinglish language in it.
Home Kg - Just another WordPress site
Wiktionary - Open Source wiki-dictionary by the Wikimedia foundation