Website means of course a series of web pages all combined to form a complete unit, be that a basic brochure site or a complex interactive site with frequently updated content managed through a CMS and even a shopping cart able to display products or services, then accept orders and process online payments. If the website is to be a professional product, then it will needs its own server and its own domain name. Websites placed on free hosting servers do not have the required facilities to create a proper commercial environment. That's why they're free.