Power plug, also known as a wall plug or electrical plug, is an essential component for connecting electronic devices to a power source. There are plenty of synonyms for this word, including AC plug, charging connector, electrical outlet, power adapter, and socket. The term "AC plug" refers explicitly to a two or three-pin plug that is inserted into a wall outlet. "Charging connector" is more commonly used to describe the plug that connects to a mobile phone or laptop. "Electrical outlet" is a more general term used to describe a socket that provides power, whereas "power adapter" is a term that describes a device that converts electrical energy to a format compatible with a particular device. "Socket" is a generic term that refers to a socket for plugging in electrical equipment.