<P> By analogy with this lion dollar, Spanish pesos--with the same weight and shape as the lion dollar--came to be known as Spanish dollars . By the mid-18th century, the lion dollar had been replaced by the Spanish dollar, the famous "piece of eight", which was distributed widely in the Spanish colonies in the New World and in the Philippines . Eventually, dollar became the name of the first official American currency . </P> <P> The colloquialism "buck" (s) (much like the British word "quid" (s, pl) for the pound sterling) is often used to refer to dollars of various nations, including the U.S. dollar . This term, dating to the 18th century, may have originated with the colonial leather trade . It may also have originated from a poker term . "Greenback" is another nickname originally applied specifically to the 19th century Demand Note dollars created by Abraham Lincoln to finance the costs of the Civil War for the North . The original note was printed in black and green on the back side . It is still used to refer to the U.S. dollar (but not to the dollars of other countries). Other well - known names of the dollar as a whole in denominations include "greenmail", "green" and "dead presidents" (the last because deceased presidents are pictured on most bills). </P> <P> A "grand", sometimes shortened to simply "G", is a common term for the amount of $1,000 . The suffix "K" or "k" (from "kilo -") is also commonly used to denote this amount (such as "$10 k" to mean $10,000). However, the $1,000 note is no longer in general use . A "large" or "stack", it is usually a reference to a multiple of $1,000 (such as "fifty large" meaning $50,000). The $100 note is nicknamed "Benjamin", "Benji", "Ben", or "Franklin" (after Benjamin Franklin), "C - note" (C being the Roman numeral for 100), "Century note" or "bill" (e.g. "two bills" being $200). The $50 note is occasionally called a "yardstick" or a "grant" (after President Ulysses S. Grant, pictured on the obverse). The $20 note is referred to as a "double sawbuck", "Jackson" (after Andrew Jackson), or "double eagle". The $10 note is referred to as a "sawbuck", "ten - spot" or "Hamilton" (after Alexander Hamilton). The $5 note as "Lincoln", "fin", "fiver" or "five - spot". The infrequently - used $2 note is sometimes called "deuce", "Tom", or "Jefferson" (after Thomas Jefferson). The $1 note as a "single" or "buck". The dollar has also been referred to as a "bone" and "bones" in plural (e.g. "twenty bones" is equal to $20). The newer designs, with portraits displayed in the main body of the obverse (rather than in cameo insets), upon paper color - coded by denomination, are sometimes referred to as "bigface" notes or "Monopoly money". </P> <P> "Piastre" was the original French word for the U.S. dollar, used for example in the French text of the Louisiana Purchase . Calling the dollar a piastre is still common among the speakers of Cajun French and New England French . Modern French uses dollar for this unit of currency as well . The term is still used as slang for U.S. dollars in the French - speaking Caribbean islands, most notably Haiti . </P>

Who's face is on the two dollar bill