A domain name is a word along with a TLD that uniquely identifies your website.

According to Wikipedia, A domain name is an identification label that defines a realm of administrative autonomy, authority, or control in the Internet. Domain names are also hostnames that identify Internet Protocol (IP) resources such as web sites. To make it more simple, Domain names are used in URLs to identify particular Web pages.
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Domain names used to one or more IP addresses to identify. For example, Microsoft.com is the domain of about a dozen IP addresses. Domain names used in URL names Web domains to identify, take pages.Before confirm that the product or service, combined with the name of where you live enough to get traffic.

A domain name locates an organization or other entity on the Internet. It is the name by which an individual or organisation chooses to be known on the Internet. Once registered it is recognised globally and cannot be used by anyone else in the world.

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The homepage of the domain points other than the home page, can be an inside page or landing page. This strategy has multiple domain names, the names of specific product names associated with small regions, towns or villages. This is a viable strategy. These pages should match the domain name, thus maximizing efficiency.

Organization of a domain name or any other entity on the Internet. This is the name of an individual or organization decides to be known on the Internet. Admittedly, once registered, all over the world, which can not be used by someone else in the world.

Domain name is needed when you have to register your website on net.

A meaningful, easy-to-remember "handle" for addressing computers and information on the Internet. Domain names typically end with a suffix that denotes the type or location of a resource.

A significant, easy-to-remember "hold" for addressing computers and substance on the Cyberspace. Area calumny typically end with a affix that denotes the write or position of a resourcefulness.

Domain name registration for top level domains to provide end-users to create Web sites on the Internet. Each region is unique, so the availability of a particular name is not guaranteed. When a person is available to accept the domain name, the registration of a lease domain user domain for a year.