The franc (₣) is the name of several currency units. The French franc was the former currency of France until the euro was adopted in 1999 (by law, 2002 de facto). The Swiss franc is a major world currency today due to the prominence of Swiss financial institutions. The name is said to derive from the Latin inscription francorum rex (Style of the French sovereign: King of the Franks) used on early French coins and until the 18th century, or from the French franc, meaning "frank" (and "free" when used in the term "coup franc" or in English, "free kick" otherwise "gratuit" is the French word for free).
The countries that use francs include Switzerland, Liechtenstein, and most of Francophone Africa. Before the introduction of the euro, francs were also used in France, Belgium and Luxembourg, while Andorra and Monaco accepted the French franc as legal tender (Monegasque franc). The franc was also used within the French Empire's colonies, including Algeria and Cambodia. The franc is sometimes italianised or hispanicised as the franco, for instance in Luccan franco.