The hosted domains feature of a website hosting account denotes the number of registered domain names that one can add within the very same account. Registering a domain address and hosting it are two different services although some people consider them to be the very same thing. While the registration ensures that you become the owner of a specific domain name, the hosting part is what really allows you to have a website since this is where your data and email messages will be. Because these are 2 different services, it is possible to register a new domain with one company and host it with another one by modifying its name servers (DNS) - the domain name shall work in the exact same way just as if it was registered and hosted with the exact same company. It's also extremely important to know that changing the hosting means directing the domain name to a different company and not transferring it.