Sesame Street Alphabet Kitchen - Entertaining vocabulary-building app to help children with early literacy skills.
Reverse Dictionary - Describe a concept and get back a list of words
ABC Kids - Fun, tracing and phonics app to teach kids the English alphabet.
Writefull Thesaurus - A Google Docs add-on that uses AI to give you synonyms
Home Kg - Just another WordPress site
Silicon Valley Dictionary - Urban dictionary meets Silicon Valley