Some hosting plan supports multiple websites in single hosting account.
Please refer to the steps below to create a new domain in your cPanel account.
Creating Addon Domain
1. Login to your cPanel control panel (EG. http://yourdomain.com/cpanel).
2. Click on Domains icon under Domains section.
3. Click Create A New Domain button.
4. Select "Registered Domain".
5. Enter the domain name in the field.
6. Uncheck "Share document root" option.
7. Click Submit to save the changes.
* The domain's name server must be pointed to the hosting account before adding it as addon domain.
Creating Domain Alias
1. Login to your cPanel control panel (EG. http://yourdomain.com/cpanel).
2. Click on Domains icon under Domains section.
3. Click Create A New Domain button.
4. Select "Registered Domain".
5. Enter the domain name in the field.
6. Leave "Share document root" option checked.
7. Click Submit to save the changes.
* The domain's name server must be pointed to the hosting account before adding it as domain alias.
Creating Subdomain
1. Login to your cPanel control panel (EG. http://yourdomain.com/cpanel).
2. Click on Domains icon under Domains section.
3. Click Create A New Domain button.
4. Select "Registered Domain".
5. Enter the domain name in the field (EG. sales.yourdomain.com).
6. Click Submit to save the changes.
Find out the Difference between Subdomain, Domain Alias and Addon Domain