| Aurora |
bands or streamers of light that appear in the sky at night in areas around the magnetic poles, caused by solar particles striking atoms in the outer part of the earth's atmosphere. |
| barter |
to trade services or things for other services or things without using money. |
| characterize |
to describe the particular character or qualities of; give certain characteristics to. |
| charter |
an official document given by a government or ruler to a business or other group. The charter explains the group's rights and responsibilities. |
| complexity |
the state or condition of being complex or complicated. |
| conditional |
depending on certain circumstances or events. |
| converse2 |
a thing that is the opposite or the reverse of something else. |
| crease |
a fold or dent made by heat or pressure. |
| diversion |
an act or instance of turning aside. |
| doctrine |
a belief or set of beliefs held by a religion, government, or other group. |
| fugitive |
a person who is escaping or running away. |
| impertinent |
rude or too bold. |
| presidential |
of or relating to the person or office of a president. |
| prospective |
likely or expected. |
| violation |
the act of breaking or breaching a law, rule, or agreement. |