Words For That VS Easy Ten

Reverse Dictionary - Describe a concept and get back a list of words

Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Wordd - Quickly look up vocabulary, abbreviations, acronyms, slang

Lingvist - Lingvist helps you take your foreign language skills to the next level with a broad selection of exercises and lessons.

Silicon Valley Dictionary - Urban dictionary meets Silicon Valley

Fluent - Fluent is a people-based marketing platform that uses real-time, one-to-one interaction to create custom audiences and serve personalized ads that drive performance at scale.