The "Five-Dollar Bill" is a denomination of United States currency. It features a portrait of Abraham Lincoln, the 16th President of the United States, on the front. The bill is primarily green and includes various security features to prevent counterfeiting, such as a security thread and color-shifting ink. The back of the five-dollar bill showcases the Lincoln Memorial, a tribute to Lincoln's legacy. The bill is commonly used in everyday transactions and is part of the U.S. paper currency series, which includes other denominations like the one-dollar, ten-dollar, and twenty-dollar bills.