The hosted domains feature of a website hosting account refers to the number of registered domain names that one could include within the exact same account. Registering a domain and hosting it are two totally different services even though many people consider them to be the same thing. While the registration ensures that you become the owner of a specific domain name, the hosting aspect is what actually permits you to have a site as this is where your files and email messages will be. Since these are 2 separate services, it is possible to register a new domain address with one company and host it with another by changing its name servers (DNS) - the domain shall work in the exact same way as if it was registered and hosted with the exact same company. It's also very important to know that changing the hosting means directing the domain name to an alternative company and not transferring it.