The hosted domains feature of a website hosting account denotes the amount of registered domains that one can include in the exact same account. Registering a domain name and hosting it are two different services although some people consider them to be the very same thing. While the registration means you become the owner of a specific domain address, the hosting aspect is what actually allows you to have a web site since this is where your data and email messages will be. Since these are 2 independent services, you are able to register a new domain name with one company and host it with another one by modifying its name servers (DNS) - the domain is going to work in the exact same way as if it was registered and hosted using the same company. It is also important to know that changing the hosting means pointing the domain address to another company and not transferring it.