an inconvertible legal-tender US currency note originally issued during the Civil War in 1862 a dollar bill
WordReference Random House Learner's Dictionary of American English © 2025
green•back /ˈgrinˌbæk/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- a U.S. bill of money, printed in green on the back.
green•back
(grēn′bak′),USA pronunciation n.
- 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.
- green + back1 1860–65, American.
Collins Concise English Dictionary © HarperCollins Publishers::
'greenback' also found in these entries (note: many are not synonyms or translations):