| accumulate |
to pile up, collect, or gather. |
| adolescent |
a person who is changing from a child to an adult; teenager. |
| corruption |
activity that is not honest, especially secret, illegal activity. |
| courteous |
being polite or showing good manners. |
| disposal |
a giving away or a getting rid of something. |
| embark |
to board a ship when beginning a trip. |
| escapade |
a wild adventure or prank, usually mischievous or mildly wicked. |
| expire |
to come to an end. |
| glower |
to look or stare with sullenness, anger, or animosity; scowl. |
| grieve |
to feel great sadness; mourn. |
| hypothesis |
a prediction or educated guess that can be tested and can be used to guide further study. |
| ingenious |
clever or creative in setting up or working through problems. |
| initiative |
the power, energy, or ability to organize or accomplish something. |
| partial |
not complete. |
| periodic |
happening or appearing at regular times. |