Slang Term for a Paper Currency Note From the USA

This page is the CodyCross answer for the clue below from Paris, Group 259, Puzzle 4 (Park Promenades).

Question is: Slang Term for a Paper Currency Note From the USA

and the answer is: GREENBACK

Word Meaning:

GREENBACK — (US) Any bill that is legal tender in the US (originally printed with green and black ink) issued by the Federal Reserve.

Definitions from Wiktionary.