What does `register_taxonomy()` do and what is the relationship between taxonomies and post types?

Question

WordPress Fundamental — Medium

What does `register_taxonomy()` do and what is the relationship between taxonomies and post types?

Accepted Answer

`register_taxonomy()` registers a custom taxonomy that can be linked to post types, expanding post categorization options. This function does not create a new database table or field type for the Gutenberg editor.