Help:Namespaces

A namespace is a way of separating types of content in a wiki. Groups of pages with similar purposes can be grouped together, and can be searched and listed separately from each other. Each page belongs to exactly one namespace. The namespace of a page is indicated the by the word preceding the colon in the page title. For example, "User talk:Pagename" is a page in the "User talk" namespace. If there is no prefix (or the prefix does not match an existing namespace) the page belongs to the "Main" namespace of that Wiki.

Virtual Namespaces
There are two virtual namespaces that do not relate to pages stored in the database, Special and Media. TibiaWiki does not currently use the Media namespace. The Special namespace pages are automatically generated and cannot be edited, an example is Special:Recentchanges or Special:Userlogin. They're vital to the MediaWiki software.

External References
Help:Namespace at Meta - This page was based on their version.