The hosted domains feature of a web hosting account indicates the number of registered domain names that you can include within the exact same account. Registering a domain address and hosting it are 2 completely different services even though many people consider them to be the very same thing. While the registration means that you become the owner of a certain domain name, the hosting aspect is what really permits you to have a site considering that this is where your files and email messages will be. Since 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 shall work in the exact same way just as if it was registered and hosted using the same company. It's also extremely important to know that changing the hosting means directing the domain address to an alternative company and not transferring it.