The hosted domains feature of a web hosting account indicates the number of registered domain names that you could include within the same account. Registering a domain and hosting it are two totally different services although a lot of people consider them to be the exact same thing. While the registration signifies that you become the owner of a specific domain, the hosting part is what in fact permits you to have a site as this is where your files and e-mails will be. Since these are two different services, you can register a new domain address with one company and host it with another by changing its name servers (DNS) - the domain address is going to work in the exact same way just as if it was registered and hosted with the exact same company. It's also extremely important to know that changing the hosting means directing the domain to a different company and not transferring it.