Learning to use Libreoffice 6.4 writer

Glory to God in the highest!
I am now trying to learn how to use the writer program in Libreoffice.
Again and again I am looking for a dictionary or a list that describes the different functions.
My questions are like this:
What is a paragraph, bullet, label, text box, wrap, styles, and so forth. The list is not endless as Libreoffice is just a program, but it is long indeed.
I am able to find what I am searching for, but the process is so slow. An index would be of great help.
An example of a function I still did not understand is bullet.
In the Screenshot attached you can see what is presented, and I dont know which topic, or if indeed there is a topic able to define what a bullet is. After reading the first hit I am none the wiser. The text explains about replacing but there is no mention of bullet there.

Any help would be greatly appreciated.
God bless you all in Jesu name.

(edited by ajlittoz to display the screenshots)

As a beginner, it is usually best to study a manual. You can find one here:

[English documentation](https://documentation.libreoffice.org/en/english-documentation/)

Press F1 or select Help - LibreOffice help, then you get an index to search.