Click Tools...Letters and Mailing...Envelopes and Labels.
Click the Options button and locate the business card (the one that is
2" X 3.5" -- click page layout to verify that it is 2 across and 4 down
on the page).
Click OK.
Then click New Document.
Then type the term in the left card and the definition in the right one.
(Thanks to the people at http://208.183.128.3/tutorials/gameboard.htm
for this. They have a great resource for making games for use with
classes and groups.)