We have a glossary here: Glossary | Kirby
The items in this glossary are used in the content via the glossary kirbytag: getkirby.com/guide.txt at aef9b24aadc8039a5a714326e48a8e5a5309dc83 · getkirby/getkirby.com · GitHub
When you hover over the items, the explanation is shown: Exploring the Starterkit | Kirby
Is that what you mean?