1. weaken, lessen the value of something, usually by hitting _____   
2. before an event or activity_____    
3. give money generously_____  
4. paper money or currency_____ 
5. person who studies or does scholarly work_____   
6. giving unselfishly, usually large amounts_____  
7. place where art is displayed for the public_____    
8. a university professor_____ 
9. make certain, insure_____   
10. a drop or decrease_____   
11. in an important or meaningful way_____   
12. absence, deficiency_____   
13. give support to, strengthen_____   
14. natural or innate ability_____  
15. sense, notice, observe through the senses_____  

A. academic
B. banknote
C. dent
D. dig deep
E. ensure
F. fall
G. gallery
H. generous
I. in advance
J. instinct
K. lack
L. lecturer
M. perceive
N. reinforce
O. significantly