Caffe Americano

Caffè americano , also known as americano or American, is a type of coffee drink prepared by diluting an espresso shot with hot water at a 1:3 to 1:4 ratio, resulting in a drink that retains the complex flavors of espresso, but in a lighter way. Its strength varies with the number of shots of espresso and the amount of water added. The name is also spelled with varying capitalization and use of diacritics: e.g., "café americano". In Italy, caffè americano may mean either espresso with hot water or long-filtered coffee, but the latter is more precisely called caffè all'americana (lit. 'American-style coffee').

Source: Wikipedia