what are the world currencies
The US Dollar (top) and the euro are by far the most used currencies in terms of global reserves. In the foreign exchange market and international finance, a world currency, supranational currency, or global currency refers to a currency that is transacted internationally, with no set borders.
As with the dollar, some of the world's currencies are pegged against the euro. They are usually Eastern European currencies like the Bulgarian lev, plus several west African currencies like the Cape Verdean escudo and the CFA franc.