greenback

== English == === Etymology === From green +‎ back. === Pronunciation === === Noun === greenback (plural greenbacks) (US) Any bill that is legal tender in the US (originally printed with green and black ink) issued by the Federal Reserve. The United States dollar. (historical) A unit of American currency issued during the Civil War by the Treasury Department. (surfing) A wave that has not yet begun to break. ==== Derived terms ==== === See also === greenback on Wikipedia.Wikipedia funnyback on Wikipedia.Wikipedia