Word allows you to create a table of contents, a list of images, and indexes. If you write a long enough article and use too many acronyms to remember, you should index everything. This is very simple. This is what you should do.
Create an acronym index
You can create an index at any time; when you're writing a document or when you're done with it, however, it's best to add multiple acronyms that you use as you go along. This makes you not miss.
The only trick is knowing how to add items to the index. Open your document and select the acronym to add. It is good practice to use the entire form first, and then follow it with the acronym in parentheses. Once selected, open the References tab and click the Mark Entry button.
In the window that opens, enter the full form of the acronym in the Main Entry field. Don't delete the acronym. Repeat this for each acronym you want to add. When you ‘mark’ an entry, the paragraph entry is added automatically and is not the best to see. You can hide it from the Home tab. Click the P button backwards in the paragraph toolset to hide it.
When done, open the end of the document to enter the index. Open the References tab and click the Insert Index button. You can add more elements to the index whenever you need to and then update / update the index by right-clicking or going to the References tab and selecting the update button there.
In general, when you add index entries, they all enter an index. If you need more than one index in your document, you should plan ahead because adding more than one index is quite complicated and keeping the entries in order between two (or three) can be a challenge.
Indexes are self-generated elements like Alt text and there isn't much you can do to format them. When entering an index, look at the options available. If what you choose doesn't work for your document, you can remove the index and insert it again. Doing so will give you the same options as before and you can change the look.