Knowledge & Reference marks a content type built around background knowledge. It does not just explain a single term, it places a topic in a wider context, with more than one angle on the same subject.
Knowledge & Reference versus glossary
A glossary entry defines one word. Knowledge & Reference goes further: the type connects several related aspects of a topic, such as origin, mechanics, and context, within one piece instead of several short entries.
The type works as a reference for anyone who wants to understand a topic before following a how-to or making a decision. Other content across the network can point to this context instead of repeating it in every single place, which keeps longer pieces focused.