What Does Namespace Mean?

A namespace is used to uniquely identify one or more names from other similar names of different objects, groups or the namespace in general. Namespace makes it possible to distinguish objects with similar names but different origins. In XML, a namespace is a collection of element type and attribute names, each of which which can be identified by the unique namespace to which they belong.

Techopedia Explains Namespace

Namespace is primarily used in programming languages where the same name may be used for different objects. It is created to group together those names that might be repeated elsewhere within the same or interlinked programs, objects and elements.