I found this hint on Reddit. This might interest anyone using a Retina MacBook Pro.
What you need to do is add a key to Word's Info.plist file. After you've made a backup of Word, right-click on its icon and choose Show Package Contents. Open Info.plist with a text editor, and add the following to the end of the file, just before the ≪/dict> line:
<Key>NSHighResolutionCapable</key> <String>True</string>Save the file. When you launch Word, OS X will attempt to run the app at Retina resolution, but since it won't find any Retina graphics only Retina fonts will be substituted.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20120731145025768