Dictionaries on other sites

Source languageTarget language

Cambridge Dictionaries Online (cambridge.org)
Dictionary and Thesaurus - Merriam-Webster Online
Dictionary Definitions and Thesaurus Synonyms (zebrawords.com)
Dictionary: Online definitions and pronunciations - Yahoo! Education
Historical Dictionary of American Slang (alphadictionary.com)
Hobson-Jobson (uchicago.edu)
Law Dictionary (law.com)
List of technical and popular medical terms: English (ugent.be)
Medical Dictionary (medterms.com)
Multilingual Dictionary (menq.am)
OneLook Dictionary Search (onelook.com)
Online Dictionary (lookwayup.com)
Rasta/Patois - English Dictionary (translationdirectory.com)
Synonyms & Antonyms Dictionary in English by Collins (reverso.net)
The ARTFL Project (uchicago.edu)
The Free Dictionary (thefreedictionary.com)
Wiktionary (wiktionary.org)
Wordsmyth (wordsmyth.net)