Pseudo-namespaces Wikipedia:Namespace

wp:pns

Аpart wikipedia s 32 regular namespaces , aliases, , 2 virtual ones, there several title prefixes appearing in shortcut redirects pointing frequently-referred-to wikipedia pages. these prefixes referred pseudo-namespaces , include following:

cat: shortcuts category namespace. see category:redirects category space
h: shortcuts namespace. see category:redirects namespace
mos: shortcuts manual of style. see category:redirects project space
p: shortcuts portal namespace. see category:redirects portal space
t: shortcuts template namespace. see category:redirects template non-template namespace

a more complete list available @ wikipedia:shortcut#list of prefixes.

pseudo-namespaces not in way recognised wiki software; purely community custom. titles in pseudo-namespaces belong technically in main (article) namespace , treated such software: case-sensitive , appear in search results restricted main namespace. alias treated real namespace, resulting in search pagename in namespace, pseudo-namespace:pagename search in mainspace, not pseudo-namespace. example, searching h:s not search help.

to learn of these shortcuts, first follow pseudo-namespace link above, follow 1 of redirects listed on page. take target, notice {{shortcut}} boxes right of page, listing other shortcuts same area. observing these steps repeatedly, can discover ways shorten typing. use pseudo-namespace names more if advanced editor, highly active in many namespaces, or linking pages in pseudo-namespace.

to understand appropriateness of redirects of type, see wikipedia:cross-namespace redirects. shortcuts discoverable looking redirects. try special:search engine advanced interface, redirects check-box selected; there category wikipedia redirects.

as final example, every wikimedia foundation project has transwiki: pseudo-namespace (sometimes real namespace) importing articles manually. wiki project manually move many pages between sister projects uses tag. redirects/shortcuts not directly involved here, described above. instead page title moved transwiki:namespace:pagename , , content copied , pasted new page name of temporary title on target wiki. when accepted title moved out of transwiki pseudo-namespace there , becomes real page name in respective namespace.