There are numerous synonyms for the term "fake money," including counterfeit currency, bogus bills, phony cash, forged notes, and fraudulent funds. Counterfeit currency refers to bills or coins that are made to look like official currency but are not authorized by the government. Bogus bills are similar to counterfeit currency and are also not legally authorized. Phony cash is a general term that refers to any form of fake money. Forged notes are bills that are created by copying official currency designs. Lastly, fraudulent funds include any money that is obtained through illegal means, including counterfeiting.