What is Entity Reference?

Question

Drupal

Explain please what is Entity Reference. If possible, point to an example where I can see the Entity Reference on the site and how it looks.

Answer 1

field type that allows you to link entities to each other (it seems clear from the name of the module).
The most common use case is linking a node to a taxonomy term (headings, tags).
or, for example, refer from one node to another (display a link or render).