There's not one, but two easy ways to insert a horizontal line into a Word document.

There are several different types of lines you can insert in a Word document with simple keyboard shortcuts.

How do I insert a horizontal line in Docs? If you use Google Docs instead of Microsoft Word, you can insert a horizontal line easily in that application as well.

You can create a dashed, dotted line in Microsoft Word via Insert, Shape Styles on Ribbon or by using a shortcut. Learn how to do it.

Add a vertical line in Microsoft Word to draw attention to special content or help define elements.