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content repository

n. (context computing English) The main repository of a content management system

Wikipedia
Content repository

A content repository or content store is a database of digital content with an associated set of data management, search and access methods allowing application-independent access to the content, rather like a digital library, but with the ability to store and modify content in addition to searching and retrieving. The content repository acts as the storage engine for a larger application such as a Content Management System or a Document Management System, which adds a user interface on top of the repository's application programming interface.