Monolingual Dictionary

Tresor de la langue francaise
http://atilf.atilf.fr/dendien/scripts/tlfiv4/showps.exe?p=combi.htm;java=no;
A monolingual French dictionary with definitions and examples.


Bilingual Dictionary

Babylon translation@ a click
http://www.babylon.com/define/103/Online-French-English-dictionary.html
This collection of French to English and English to French Online Dictionaries not only comprises general, encyclopedic, slang & informal terms but also covers a wide range of professional fields.

French linguistics-dictionary
http://www.french-linguistics.co.uk/dictionary/
A single-directional French-English bilingual dictionary, which allows users to look up words in French words only. English definition, and French usage example are available in each entry.

French-English dictionary, by the ARTFL Project
http://machaut.uchicago.edu/?resource=frengdict
Supported by the ARTFL project, the University of Chicago, and according to Dictionnaire de L'Académie française, and Webster's Revised Unabridged Dictionary, a bi-directional French-English dictionary allows users to look up both English and French words. French and English definitions, part of speeches, root, and usage examples are available in each entry.

Lexilogos French dictionary
http://www.lexilogos.com/french_language_dictionary.htm
Links with different dictionaries such as Collins, Cambridge, TV5, Ultralingua Wordreference and Systran, a bi-directional French-English dictionary search engine allows users to look up both English and French words. French and English definitions, part of speeches, usage examples, and more are available in each entry. Other services like modern and ancient dictionary links, English-French translation, quotes, spelling and grammar check, and France's country profile are available to use.

TV5Monde dictionnaire
http://dictionnaire.tv5.org/dictionnaires.asp?Action=1
This website includes a French monolingual dictionary, and a French-English bilingual dictionary. Users are allowed to look up both English and French words. French and English definitions, synonyms, conjugation, and usage examples are available in each entry.