The Ethiopian monetary unit is the official currency used in Ethiopia. It is commonly referred to as the birr, however, there are other synonyms that are used interchangeably. These synonyms include ETB, Ethiopian dollar, Ethiopian pound, Ethiopian franc, Ethiopian shilling, and Ethiopian peso. The birr is available in denominations of 1, 5, 10, 50, and 100 and coins in 1, 5, 10, 25, and 50 cents. It is widely accepted throughout the country and can also be exchanged at airports and banks. It's important to note that the Ethiopian monetary unit was introduced in 1945, replacing the former Ethiopian dollar.