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Greenback
Casual Term![Play](https://cdn-wordup.com/WebsiteImages/DictionaryPics/BlackPlay.svg)
Greenback is informal, suitable for casual speech rather than official documents. ![Slide](https://word-images.cdn-wordup.com/tips/DiVyADd2ZRNJzqwcOhn7g09kSI.webp)
American English![Play](https://cdn-wordup.com/WebsiteImages/DictionaryPics/BlackPlay.svg)
Used primarily in American English, so it's less familiar to non-American English speakers. ![Slide](https://word-images.cdn-wordup.com/tips/tNbJ98Uzwxl2Nl4itrMpDlH3JZQ.webp)
Not Plural Specific![Play](https://cdn-wordup.com/WebsiteImages/DictionaryPics/BlackPlay.svg)
Can refer to any amount, not necessarily plural; 'greenback' can mean one dollar or many. ![Slide](https://word-images.cdn-wordup.com/tips/Vhn9xaqlYDLgXeYxRJqJQBxkGA4.webp)