The term currency is used to name a legal tender in a given country. In the present-day world there are 5 currencies that are most important: American dollar, Swiss franc, euro, British pound and Japanese yen. The most popular in the classification of currencies is the division with regard to the significance in the international economic relations. Currencies can be divided into hard ones, i.e. those that can be exchanged practically everywhere and anywhere, such as American dollar, but also into soft ones, the exchangeability of which is limited. The latter kind of currencies most often cannot be transported out of the country in which they are used as legal tenders and if there is a possibility of such transport it is subject to many restrictions. The Tunisian dinar can be used as the example of such a currency.
