Content Hub
A content hub is a central, well-structured collection of related content on a particular subject area – often a pillar page linked to several in-depth articles – used to demonstrate comprehensive expertise on that topic.
In practice
This glossary itself works as a content hub: internal linking between the overview page and the individual terms is what makes the structure work for readers and search engines alike. A good content hub is extended with new, fitting articles over time, instead of being built once and then left unmaintained.