Infogalactic

Infogalactic is an Internet-based, free-content encyclopedia project that is a dynamic fork of Wikipedia and improves upon the online encyclopedia's model of openly...

Free Web

Glosbe

Huge collaborative massively multilingual dictionary.

Free Personal Web

xFarDic

xFarDic is a comprehensive multilingual dictionary developed using GTK2, wxWidgets, libxml2, under GNU/Linux and relesed under GNU/GPL. It can be installed and used in different RPM and Debian based distros.

Free Open Source Linux

purple

Dictionary from the Elementary project.

Free Open Source Linux

VerbAce

VerbAce-Pro is an easy-to-use Desktop Translation Software. Translate in a mouse click From any application Access Wikipedia Quick translation option by moving the cursor

Freemium Windows Android

SpanishDict

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

Free Android iPhone Web

ImTranslator

ImTranslator provides the access to online translation powered by Babylon, Google, Microsoft and other translation engines for over 66 languages.

Free Mac OS X Windows Linux Firefox

Mate Translate

Looking for an easy and fun to use language translator app? Then download Mate Translate today.

Freemium

Oppia

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

Free Open Source Mac OS X Windows Linux Web Self-Hosted

Visuwords

The fun and free way to look up definitions. THE graphical dictionary and visual thesaurus. We love words.

Free Web

Stubia

Stubia is a mobile encyclopedia that limits each article to 160 characters: this limitation makes each topic easy to understand.

Free Web

Alchetron

Alchetron.com is a free social encyclopedia for world where you can create, organize and learn easily using topics.

Free Mac OS X Windows Linux Android Android Tablet Chrome OS Web

Ultralingua

At Ultralingua, we make software for people who love languages. We focus on high quality consumer applications for mobile devices, and offer our linguistic APIs to partners in a variety of fields.

Freemium Mac OS X Windows Android iPhone Android Tablet iPad Web

Google Translator for Firefox

With this addon you can translate any text to your own language with one click or hot-key.

Free Mac OS X Windows Linux Firefox

Longman English Dictionary Online

The Longman Dictionary of Contemporary English Online is an online version of the CD-ROM of the Longman Dictionary of Contemporary English, Updated Edition.

Free Web

Thesaurus.com

Thesaurus.com is the world’s largest and most trusted free online thesaurus brought to you by Dictionary.com. For over 20 years, Thesaurus.com has been helping millions...

Free Chrome OS Web Google Drive - Docs

Citizendium

A wiki-based encyclopedia, the primary difference between Citizendium and Wikipedia being that Citizendium has "subject matter expert" editors, chosen by the...

Free Web

NextDict Dictionary

NextDict is a multi-language dictionary and a collection of the most complete English references for English and foreign language learners. The app can be used...

Free Android iPhone

Ninjawords

Ninjas are three things: Theyre smart, theyre quick, theyre deadly accurate—Ninjawords is a dictionary for the iPhone built on these principles. We made it because we...

Commercial iPhone