https://wordpress.org/support/topic/auto-populate-taxonomy-terms-with-post-titles-from-a-custom-post-type/
Auto Populate Taxonomy Terms With Post Titles From A Custom Post Type Resolved hoohum (@hoohum) 2 years, 12 months ago I have two CPTs. One called Staff,...
autopopulatetaxonomytermspost
https://toolset.com/course-lesson/creating-a-custom-taxonomy/
Nov 18, 2020 - Custom taxonomy lets you organize your custom post types. It’s like categories and tags for posts, but used for any custom type that you define.
custom taxonomycreatingwordpresstoolset
https://www.progress.com/documentation/sitefinity-cms/122/tutorial-add-a-flat-taxonomy-as-a-custom-attribute-to-a-page
Add a flat taxonomy as a custom attribute to a Sitefinity CMS page.
addflattaxonomycustomattribute
https://www.progress.com/documentation/sitefinity-cms/110/for-developers-add-a-custom-page-taxonomy-to-a-search-index
Add a custom taxonomy for pages to a search index to filter search results, for example, by a tag.
search indexaddcustomtaxonomysitefinity