Assigning names to text or to positions in an MS Word document is called Bookmark
A bookmark in MS Word serves the same purpose as the bookmark you put in place in a book.
The bookmark marks a place that you want to find easily, and one that you want to return to when you need it.
The definition of bookmark in MS Word is a specific word, section, or location in your Word document that you want to name and identify for future reference.
In Word, bookmarks are saved with the document file. Therefore, you can assign bookmarks with the same name in different files.
Names of bookmarks must begin with a letter of the alphabet, they can contain only letters, numbers, and the underscore, and cannot contain spaces or punctuation marks.
Adding bookmarks in Word is also easy.
All you have to do is mark the location in the document, and then go to the toolbar menu and click "Insert">" Bookmark".
You'll need to select a name for your bookmark so that you can easily find it later on.