The answer to 'what is outlet' is an electrical outlet, also known as a power outlet or receptacle. An electrical outlet is a socket installed in a wall or other surface that provides a connection point to the electrical system, allowing you to plug in and power various electrical devices and appliances.
Electrical outlets are an essential component of any home's electrical infrastructure, providing a safe and convenient way to access electrical power. They come in different shapes, sizes, and configurations, depending on the voltage and current requirements of the devices they are designed to accommodate.