A power cord is an essential accessory that connects a device to an electrical outlet and provides it with the necessary power to function. However, there are various synonyms for "power cord," which differ based on the device they connect to or the type of connector used. Some terms used to refer to power cords include AC cord, mains cable, power cable, and electrical cord. Other names specific to particular devices include laptop charger, phone charger, and printer cable. Additionally, terms like extension cord and surge protector provide power to multiple devices from a single outlet. Overall, the type of power cord needed depends on the device to be powered and the intended use.