The project namespace or Wikipedia namespace is a namespace consisting of administration pages with information or discussion about Wikipedia. Pages in this namespace will always have the prefix Wikipedia:. They can also be reached by alias WP: or the standard prefix Project:. Its namespace number is four (4).
Project namespace search
By default Wikipedia's search engine is restricted to the Article namespace. Typing the project page prefix Wikipedia: (Wikipedia followed by a colon) or WP: (WP followed by a colon) provides search results for the "Wikipedia namespace". You can also use the Special:Search box below to locate Wikipedia/Project namespace pages.