How does the diagram of a zener diode look likes ?

A zener diode is typically represented in a circuit diagram as a regular diode with a "Z" shape inside it. The "Z" shape represents the breakdown voltage of the zener diode, which is the voltage at which it starts conducting in the reverse direction. The symbol for a zener diode also includes two arrows pointing towards the cathode, indicating that it is a voltage-regulating diode.