| 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. |
| calamity |
an event causing great harm, pain, or destruction; disaster. |
| consent |
to give permission or approval; agree (often followed by "to"). |
| cultivate |
to make fit for growing plants by plowing, weeding, or adding fertilizer. |
| derive |
to obtain from a particular source (usually followed by "from"). |
| diplomatic |
careful not to anger people or hurt their feelings. |
| exquisite |
very beautiful; made in a lovely or delicate way. |
| forfeit |
something demanded or given up as a penalty for not acting as required by law, contract, or rules. |
| hardheaded |
not easily moved, manipulated, or duped; shrewd; pragmatic. |
| ingredient |
one of the parts of a mixture. |
| levee |
an embankment built to keep river water from flooding the land. |
| management |
the act of controlling and directing. |
| membrane |
a thin layer of tissue found in living things. Some kinds of membranes cover the outside or inside of organs. Other membranes separate or connect different parts of the body. |
| rampart |
a mound of earth raised to serve as a defensive fortification, often topped with a protective wall. |
| restraint |
the act or process of holding oneself back or holding another back. |