a plan for making money that involves encouraging people to invest by offering them a high rate of interest and using their money to pay earlier investors. When there are not enough new investors, people who have recently invested lose their money. 龐氏騙局,非法集資(指提供高息以吸引人們投資,將得來的錢用於償還之前的投資者,而當沒有足夠的新投資者時,就會給最近的投資者造成損失) Word OriginFrom Charles Ponzi, who organized the first scheme of this kind in the US in 1919.