1. DNS stands for Domain Name System and is a global distributed database system used to translate domain names into IP addresses. When the user types a domain name like http://www.hostingdictionary.net in his browser, a request is made to translate this domain name to an IP address like 18.104.22.168. The IP address is something that the servers and computers connected online use to communicate with each other. 2. DNS stands for Domain Name Server. DNS is server software used to translate domain names to IP addresses.