The term "GBU" stands for "God Bless You." It is commonly used as a polite response when someone sneezes, reflecting a cultural belief that sneezing may expel the soul or invite evil spirits. The phrase is often used in various languages and cultures, showcasing a shared human concern for health and well-being. In a different context, "GBU" can also refer to the Global Business Unit, which is a division within a company that focuses on specific markets or products. This structure allows organizations to tailor their strategies and operations to meet the unique needs of different customer segments.