what does priority mail mean refers to a USPS service designed for faster shipping of packages, typically delivered within 1-3 business days. Priority Mail is often used for both domestic and international shipments, offering quick delivery times with included tracking and insurance options. The service is ideal for small to medium-sized packages, as it balances cost with speed. For businesses and consumers who need reliable shipping without paying for expedited services, Priority Mail provides a cost-effective solution. Understanding what Priority Mail means can help you select the right shipping option for time-sensitive deliveries.