The hosted domains feature of a web hosting account denotes the amount of registered domains that you can add in the very same account. Registering a domain address and hosting it are 2 completely different services although many people consider them to be the very same thing. While the registration signifies that you become the owner of a specific domain, the hosting aspect is what really enables you to have a website since this is where your data and e-mails will be. As these are two separate services, it is possible to register a new domain address with one company and host it with another one by modifying its name servers (DNS) - the domain shall work in the exact same way as if it was registered and hosted using the same company. Additionally, it is extremely important to know that changing the hosting means pointing the domain name to another company and not transferring it.