Harrap's Shorter Dictionary:

For most of the 20th century, the "French Shorter DIctionary" has been the standard work of reference, bridging the gap between English and French. Harrap's extensive language databases have been used to guarantee thorough coverage of all areas of vocabulary. The "French Shorter DIctionary' is both classical and modern - classical in its lon tradition and modern in its up-to-date treatment of new words, especially slang.
Over 305,000 references and 555,000 Translations.
Numerous examples helps show how terms are used
Thousands of new words and expressions
Cross-references to the comprehensive French and English grammars
Hundreds of tinted usage notes help avoid translation pitfalls
Includes technical language from a wide variety of subject areas
A wealth of slang and colloquial language.