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.

Power Thesaurus - Power Thesaurus is a fast, comprehensive and easy-to-follow online thesaurus for writers...

Lingvo TV - Learn languages while watching movies on Netflix.

Writefull Thesaurus - A Google Docs add-on that uses AI to give you synonyms

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.

Wordprobe - A thesaurus and translate app for Mac & iOS.