The hosted domains feature of a web hosting account refers to the number of registered domains that one can add in the very same account. Registering a domain address and hosting it are 2 completely different services although a lot of people consider them to be the exact same thing. While the registration means that you become the owner of a specific domain address, the hosting aspect is what actually enables you to have a site as this is where your files and email messages are going to be. Since these are two separate services, you'll be able to register a new domain address with one company and host it with another one by modifying its name servers (DNS) - the domain name will 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.