Occasionally in a discussion I see a reference to a “namespace”. What is that?
A namespace is a group of pages designed to fulfill a special purpose. Namespaces are denoted by a prefix followed by a colon, as Talk:color. The one exception to that is the “article” namespace, which contains the substantive articles for the Wiktionary; it has no prefix. See Help:Namespace for more information. Articles in a namespace are also sorted and searched separately from those in other namespaces. Articles in different namespaces may have identical names after the prefix.
