From the site:
# VDict (Vietnamese Dictionary) is the best and totally free Vietnamese-English-French Online Dictionary
# You can perform lookup for a word in all dictionaries simultaneously. VDict currently supports 8 dictionaries:* Vietnamese-English dictionary
* English-Vietnamese dictionary
* Vietnamese-French dictionary
* French-Vietnamese dictionary
* Vietnamese dictionary (Vietnamese to Vietnamese)
* English-English dictionary (Wordnet)
* Free Online Dictionary Of Computing (FOLDOC)
* Chinese Vietnamese dictionary