Help:Namespaces

Namespaces are groups of pages that can be differentiated between in searches and page lists. They are indicated by having the name of the namespace preceding the article title, separated by a colon. Each namespace also has an associated talkspace, which adds a space and  between the namespace and colon, and it holds the talk pages associated with pages in those namespaces.

Non-series namespaces
There is also pages whose prefix is Special:, which are not createable by normal users, including admins, so Special: is not considered a namespace in the traditional sense.

Series namespaces
These are namespaces made for putting fanon works in. If a namespace does not exist, DO NOT try to put a page into it. This will cause a glitch that makes the page inaccessible if the namespace is later created. (For the same reason, avoid putting colons after the name of something in article titles.)
 * Animal Crossing
 * Fire Emblem
 * Kirby
 * Mario
 * Metroid
 * Pokemon
 * Splatoon
 * Star Fox
 * Super Smash Bros
 * The Legend of Zelda
 * Wii
 * Earthbound
 * OC
 * Angry Birds
 * Mii
 * Crossover
 * TV
 * Movie
 * Minecraft
 * Misc
 * Sonic
 * Beyblade