What do we mean by windfall gain?

A windfall gain refers to an unexpected, significant financial benefit or profit that an individual or organization receives, often without having to exert effort or incur risk. This can result from various events, such as winning a lottery, receiving an inheritance, or benefiting from a sudden increase in asset value. Windfall gains are typically viewed as fortunate occurrences, as they can dramatically improve one's financial situation without prior planning or investment.