The hosted domains feature of a web hosting account refers to the number of registered domains that one can include in the exact same account. Registering a domain address and hosting it are 2 totally different services although many people consider them to be the very same thing. While the registration ensures that you become the owner of a given domain name, the hosting element is what actually allows you to have a web site considering that this is where your data and e-mails will be. Because these are 2 independent services, you are able to register a new domain with one company and host it with another one by modifying 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. Also, it is very important to know that changing the hosting means directing the domain name to another company and not transferring it.