The hosted domains feature of a website hosting account indicates the number of registered domains which you can include within the very same account. Registering a domain and hosting it are two different services although many people consider them to be the same thing. While the registration means that you become the owner of a certain domain, the hosting part is what in fact permits you to have a web site since this is where your data and emails are going to be. Since these are 2 separate services, you'll be able to register a new domain name with one company and host it with another one by changing its name servers (DNS) - the domain name will work in the exact same way just as if it was registered and hosted using the same company. Additionally, it is important to know that changing the hosting means pointing the domain name to an alternative company and not transferring it.