greenback

[ green-bak ]
/ ˈgrinˌbæk /

noun

a U.S. legal-tender note, printed in green on the back since the Civil War, originally issued against the credit of the country and not against gold or silver on deposit.

Origin of greenback

An Americanism dating back to 1860–65; green + back1

Example sentences from the Web for greenback

British Dictionary definitions for greenback

greenback
/ (ˈɡriːnˌbæk) /

noun

US informal an inconvertible legal-tender US currency note originally issued during the Civil War in 1862
US slang a dollar bill