Monopoly money is a term commonly used to describe fake money used in the popular board game Monopoly. However, if you are looking for some synonym for this term, there are several phrases that come to mind. One of the most popular synonyms for monopoly money is play money. Other synonyms for monopoly money could include pretend money, fake dollars, Monopoly currency or game money. In board games, play money is commonly used to represent real currency in the game, but it holds no actual value in real life. Regardless of what synonym you use for monopoly money, it is essential to remember that it is just a game and has no real value outside of the game.