A primary or elementary school is an educational building where students attend classes in the early phase of their education. The ages covered generally range from about 5 to 13, and include all forms of schools between kindergarten and intermediate or high school level.

Any libraries, administrative offices, sports halls, and chapels sharing the same building with classroom space in schools are only assigned internal usages; they do not serve as a main or secondary usage of the school building unless they serve persons outside the school community.

The early educational stage distinguishes a primary school from an intermediate school; the ages are approximate. A library or sports hall in the classroom building can be subsidiary to the school or can also have a public function for people outside its community.