The hosted domains feature of a hosting account refers to the amount of registered domain names that you can include in the exact same account. Registering a domain name and hosting it are 2 different services although many people consider them to be the exact same thing. While the registration signifies that you become the owner of a given domain address, the hosting part is what actually permits you to have a website as this is where your data and e-mails will be. As these are 2 different services, you can register a new domain 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. Additionally, it is very important to know that changing the hosting means directing the domain name to another company and not transferring it.