what does overnight shipping mean refers to a shipping service where a package is guaranteed to be delivered the next business day after being shipped. Overnight shipping is often used for urgent deliveries, ensuring that customers receive their items as quickly as possible. This service typically costs more than standard shipping options due to its expedited nature. Overnight shipping can be offered by various carriers, including UPS, FedEx, and USPS, and it’s an excellent option when time is of the essence, whether for business or personal deliveries.