Fee/fiː/ Definition 1 of 3Pro Tip 1/3Service Payments Used when you pay specifically for services; not goods or products. The delivery service charges a fee for each package. Pro Tip 2/3Extra Costs Often an additional cost on top of a main price for a service. The concert ticket was affordable, but the service fee added extra expense. Pro Tip 3/3Transactional Context Primarily used in contexts like applications, registrations, or transactions. There's a fee for every bank transaction you make.