[{"word":"greenbacks","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Any bill that is legal tender in the US (originally printed with green and black ink) issued by the Federal Reserve.","synonyms":[],"antonyms":[]},{"definition":"The United States dollar.","synonyms":[],"antonyms":[]},{"definition":"A unit of American currency issued during the Civil War by the Treasury Department.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/greenback","https://en.wiktionary.org/wiki/greenbacks"]}]