Rotate a page to landscape or portrait orientation
You can choose either portrait (vertical) or landscape (horizontal) orientation for all or part of your document.
Change the orientation of your entire document
Click > Page Layout > Orientation.
Click Portrait or Landscape.
Use different orientations in the same document
There may be times when you want certain pages or sections of your document to have a different orientation from the rest of it. Note that Word puts selected text on its own page, and the surrounding text on separate pages.
Select the pages or paragraphs whose orientation you want to change.
Click Page Layout > Page Setup Dialog Box Launcher.
In the Page Setup box, under Orientation, click Portrait or Landscape.
Click the Apply to box and click Selected text.