Oxford Language Dictionaries Online
An online bilingual dictionaries presently contains 1.2 million words and phrases (available in French, German, Italian, Spanish, Russian and Chinese).
The dictionaries can be searched or browsed, phonetic symbols are explained, and references can be emailed or exported to bibliographical software.
Other features include audible pronunciation, grammatical notes, guides to cultural events of each country, and hints for writing in a variety of situations and formats. (3 simultaneous user limit)