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

Wiktionary

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

Free Open Source Android Web

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

Wordnik

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

Free Web

Wordo

Wordo.co is the clean and social dictionary, loved by word-geeks, Wiktionary enthousiasts and students.

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

Visuwords

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

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