Domain Name Service is the means of assigning IP addresses an easier to remember name. The common implementation used is BIND, Berkeley Internet Name Domain.
The method by which IP addresses are translated into domain names and back again. DNS is needed to be able to go to a page using its domain name (i.e., www.ibm.com)
Domain Name System. An Internet addressing system that uses a system of names listed with dots (.) between them in the order of the most specific to the most general group. In the United States the most general domains are network categories such as com (commercial), edu (education), and gov (government). EXAMPLE: webbsite.com