The hosted domains feature of a website hosting account refers to the amount of registered domain names that one could include in the very same account. Registering a domain and hosting it are 2 different services although many people consider them to be the exact same thing. While the registration ensures that you become the owner of a given domain, the hosting element is what in fact enables you to have a site considering that this is where your files and email messages are going to be. As these are 2 different 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 will 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 pointing the domain name to another company and not transferring it.