Read the dictionary definition of fortify. All definitions for this word.
1. make strong or stronger
1. This exercise will strengthen your upper body
2. strengthen the relations between the two countries
2. add alcohol to (beverages)
1. the punch is spiked!
3. add nutrients to
1. fortified milk
4. prepare oneself for a military confrontation
1. The U.S. is girding for a conflict in the Middle East
2. troops are building up on the Iraqi border
5. enclose by or as if by a fortification