INGLÊS

COBUILD Pronouncing Dictionary (University of Bochum)

Newbury House On-line Dictionary

Merriam-Webster's Collegiate Dictionary, 10th Edition

Webster's New World College Dictionary & Thesaurus

British Terms by Ben Bolker

English (gopher with a thesaurus)

The Jargon Dictionary 

Online Dictionary Database Query (DICT Group: free database)

OR Online Dictionary

One-Look Dictionary – Search 50 dictionaries simultaneously

The Internet Kendô Dictionary

Oxford English Dictionary (subscription)

New Oxford Dictionary of British English (free)

Oxford Language Word Lists (about 25 languages but no translations)

English-Afrikaans Dictionary

English-Danish Dictionary

English-Dutch Dictionary

English-French Dictionary

English-Italian Dictionary (2,200 words)

English-Portuguese Dictionary

Yiddish Borrowings in English (OED)

Wordnet English Dictionary and Thesaurus   

The Wordsmyth English Dictionary-Thesaurus