Google's dictionary extension on Google Chrome. With it, you can double-click any word to view its definition in a small pop-up bubble, or search the complete definition of any word or phrase using the address bar dictionary.



Reference.com is described as 'Offers a massive online dictionary, thesaurus, encyclopedia, quote finder, and translator (powered by Google Translate)- all for free' and is a Dictionary in the education & reference category. There are more than 50 alternatives to Reference.com, not only websites but also apps for a variety of platforms, including Windows, Android, iPhone and Mac apps. The best Reference.com alternative is Wikipedia, which is both free and Open Source. Other great sites and apps similar to Reference.com are GoldenDict, Encyclopædia Britannica, Wikiless and Tatoeba.
Google's dictionary extension on Google Chrome. With it, you can double-click any word to view its definition in a small pop-up bubble, or search the complete definition of any word or phrase using the address bar dictionary.



Oppia is a free, open-source learning platform. Full of interactive activities called 'explorations', Oppia helps curious minds learn and teach.

Welcome to WikiIndex, a wiki of all wiki, wiki people, wiki software, wiki farms, and wiki ideas, a 'work in progress' founded in 2006.

dict.cc is not only an online dictionary translating from English and German to 21 languages. Its an attempt to create a platform where users from all over the world can share their knowledge in the field of translations.




Translates over 70 languages including text, voice, and images, with offline use available. Features device synchronization and instant wearable translation. Ideal for travel and everyday needs.



Your Mac also comes with a versatile Dictionary application. It also includes to other reference libraries such as thesaurus, Apple glossary, and Wikipedia. With it, you can find definitions, learn of the word's origin, find synonyms and antonyms, or get encyclopedic...





SpanishDict is a Spanish-learning website that offers a Spanish to English dictionary, a Spanish-English translator, video lessons, flashcards, and more.



Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our free, online library.
Citizendium, powered by MediaWiki, is "an open wiki project dedicated to creating a free, comprehensive, and reliable repository of structured knowledge". Unlike with Wikipedia, a contributor must register using their real name and verify their identity.

Comprehensive free thesaurus offering over 3 million synonyms and antonyms for precise language use with filters for relevance, length, and complexity, trusted worldwide for enhancing English language skills, and developed by Dictionary.com, LLC.

Browser extension that provides online translations powered by Babylon, Google, Microsoft and other translation engines for over 66 languages.



