rob' A bank heist is a type of robbery in which criminals break into a bank and steal money or valuables. The term 'bank heist' is often used to refer to the act of stealing from a financial institution, such as a bank or credit union. The crossword solutions for the term 'bank heist' are 'ROB, ' which is an appropriate term for this type of crime. Robbing a bank is a serious offense and can result in severe legal consequences.