Google Dictionary

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.

Free Chrome OS Chrome

Dictionary.com

The free Dictionary.com app delivers content from Dictionary.com and Thesaurus.com, including nearly a million words and definitions and 90,000 synonyms and antonyms.

Free Android iPhone Web Windows Phone

WordWeb

One-click English dictionary and thesaurus for Windows. Dictionary apps for mobiles, tablets and Mac desktop. In difference to Lingoes Translator you it is only a word-translator not a text-translator.

Free Mac OS X Windows Android iPhone iPad

Artha

Artha is a handy thesaurus based on WordNet with distinct features like global hotkey look-up, passive desktop notifications, regular expression based search, etc..

Free Open Source Windows Linux

Wiktionary

Wiktionary is a multilingual, web-based project to create a free content dictionary, available in 158 languages.

Free Open Source Android Web

Apple Dictionary

Your Mac also comes with a versatile Dictionary application. It also includes to other reference libraries such as thesaurus, Apple glossary, and Wikipedia.

Free Personal Mac OS X

Merriam-Webster

Free online dictionary, thesaurus, spanish-english and medical dictionaries, audio pronunciations, Word of the Day, word games, and many more high-quality Merriam-Webster language resources. Merriam Thesaurus online https://www .

Free Android iPhone iPad Web

Reference.com

reference.com offers a massive online dictionary, thesaurus, encyclopedia, quote finder, and translator (powered by google translate)- all for free. for the dictionary.com and thesaurus.com mobile app, go here. http://alternativein .

Free Web

Wordnik

Wordnik wants to be a place for all the words, and everything known about them.

Free Web

The Free Dictionary

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus...

Freemium Android iPhone Android Tablet Web

Oxford Dictionaries

Free online dictionary of British English and American English from Oxford. Translate from English to Spanish, French, Italian, and German with bilingual dictionaries. Get writing, spelling and grammar help, and play word games. (US)

Free Web

Visuwords

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

Free Web

Advanced English Dictionary

Advanced English Dictionary is better than other dictionaries, not just because it contains far more words than a conventional paper dictionary, but because it uses a...

Commercial iPhone Blackberry Java Mobile S60

Word4

Find a _______ syllable word for _________, using Moby's Thesaurus of synonyms and related words.

Free Web

Moby Thesaurus

30,000 root words, 2.5 million synonyms andrelated words

Free Open Source Windows Linux

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

Allkdic

Handy status bar dictionary.

Free Mac

Macmillian Dictionary and Thesaurus

The Free Online English Dictionary from Macmillan Publishers.

Free Web