DNS is short for Domain Name System. The system translates domain names into the internet’s IP addresses via name servers.
Every location on the internet has a numerical code called an IP address. The IP address enables computers to find a specific location on the internet. Since this numerical code is difficult to remember, it is given a name. This name is the domain name.
In other words, DNS is kind of like a telephone book, where the IP address the telephone number and the domain name is the person you are calling.