| A | B |
|---|
| valedictorian | the student with the strongest academic standing in the class at graduation |
| catastrophe | a sudden disaster that goes against predictions |
| exodus | the movement of a large group of people out of an area |
| archenemy | principal or most important adversary |
| ambivalent | having opposing feelings around both sides of an issue at the same time |
| ultrasound | sound waves above the range that is audible to the human ear |
| deplete | to use up or empty out |
| primary | relating to the first or highest in a series |
| induct | to lead into a new position |
