When composing documents, it's essential to create annotations to clarify the meaning of a word or phrase further. This ensures that readers fully comprehend the intended message. Generating annotations in Word documents is effortlessly accomplished through the built-in functionality of Microsoft Word.

Guidelines for creating annotations in Word documents
Step 1: Place the cursor immediately after the word where the annotation is desired.

Step 2: Inserting annotations into the document using one of the following two methods:
Method 1: Navigate to the References tab and select Insert Footnote. The cursor will move to the bottom of the page where you can enter the content requiring annotation, as illustrated:

Method 2: Go to the References tab and click on the small arrow next to Footnotes. The Footnote and Endnote window will appear where you can configure the settings to create annotations, then select Insert.

- Enter the content for creating annotations

And the outcome is:
