A family of Microsoft word processing software products for creating web, email, and print documents.
If the descriptive text is in the same paragraph as the figure number, they will both be included in the table of figures. You can start a new line within the same paragraph by inserting a line break (press Shift+Enter).
When I created the screen shot below, I chose to display nonprinting marks (click the ¶ icon on the Home tab in Word). The line break will be represented by a "bent" arrow.