French Dictionary
It is said that French is the most romantic language in the world - this fact, coupled with Paris being the most romantic city, makes learning the language and visiting the city as among the top wishes of tourists. To aid in learning the language, a French dictionary could be used. To do this, one must be able to find one which directly translates from the language that he or she is fluent in. For instance, a dictionary of English to French will be invaluable to Americans.
Studying the Language
A sad fact about different languages is that they not only differ on the word or term used for a certain object or thing but the grammar rules are often completely different, too. That means that to be able to learn or speak a language, phrase or grammar books may also be necessary tools to complement the French dictionary.
Even without traveling to France, anyone could learn how to speak the language of its people - an online dictionary on the language could be used to look up word meaning, pronunciation, inflection, and general rules surrounding its usage. One really good thing about using online resources is that the word will just be typed into a box and the program will do the data retrieval - no more leafing through the dictionary's pages to get to the word. Also, some websites even offer the users a chance to hear how the word is really pronounced for a particular language.
As a reference and tool for translation, the French dictionary is attributed to the success of those who want to learn the language - be it online or not. Anyone could speak the language like a pro.
Vocabulary
The vocabulary of many languages often differs but a good French dictionary can help address issues on the right meaning of the word. Words look quite differently too. Take for instance the noun "fish" which is translated to "poisson" using the dictionary but the verb "to go fishing" as "aller à la pêche".
Availability
As a word reference, the use of dictionaries is often limitless and extremely invaluable. Still, the availability of a certain dictionary, especially one used for translation, is subject to the law of supply and demand. That means that when a language is popular or is used by a large number of people then it will usually have its own dictionary plus translations to other popular languages.
With this, the French dictionary (just definitions of the same word in the same language) is also available as translations to and from English, Japanese, German, Croatian, and Italian.