A "windfall" refers to an unexpected gain or advantage, often in the form of money or resources. This term is commonly used in finance to describe sudden financial benefits, such as an inheritance, lottery winnings, or a bonus. Windfalls can significantly impact an individual's financial situation, providing opportunities for investment or debt repayment. In a broader context, windfalls can also apply to businesses or governments that receive unexpected revenue, such as a surge in demand for a product or a favorable change in regulations. These surprise gains can lead to strategic decisions that enhance growth and stability, benefiting stakeholders involved.