The hosted domains feature of a website hosting account indicates the number of registered domains that one could include in the exact same account. Registering a domain name and hosting it are 2 totally different services although many people consider them to be the very same thing. While the registration means that you become the owner of a specific domain name, the hosting part is what actually allows you to have a web site considering that this is where your data and emails will be. Since these are two independent services, you can register a new domain name with one company and host it with another one by changing its name servers (DNS) - the domain address will work in the exact same way just as if it was registered and hosted using the same company. It is also extremely important to know that changing the hosting means pointing the domain address to an alternative company and not transferring it.