| A | B |
|---|
| aviation (n) | the art or science of flying airplanes |
| collapse (v) | to fall down or apart; to break down suddenly |
| collapse (n) | the act of falling down |
| collide (v) | to crash; to come together with a violent impact; to come into conflict |
| complex (adj) | complicated; difficult |
| complex (n) | a group of related buildings; a group of feelings that influence a person's behavior |
| demonstration (n) | the act of proving or showing through example; an outward display of, or a gathering to express, an opinion or protest |
| departure (n) | the act of going away or leaving |
| detect (v) | to discover; to notice something not obvious |
| disastrous (adj) | seriously harmful; damaging |
| disturb (v) | to break up order or quiet; to upset someone emotionally; to bother |
| exception (n) | a person to whom or a case to which something does not apply; something left out |
| fatal (adj) | destructive; resulting in death; decisive; having to do with fate |
| foundation (n) | the base on which something is built; an establishment or fund; basis |
| incident (n) | something that happens; an event |
| instinct (n) | behavior that is natural or second nature; an aptitude or talent |
| locally (adv) | within a given area |
| miraculous (adj) | wonderful; almost beyond understanding |
| nuisance (n) | something or somebody causing annoyance or inconvenience |
| predict (v) | to foretell an event or events |
| rash (adj) | hasty or reckless |
| rash (n) | spots that erupt on the skin; a large number of instances that occur suddenly |
| unfavorable (adj) | not approved; not helpful |
