| A | B |
| audacious | willingness to take bold risks |
| vicious | deliberately cruel or violent |
| edema | swelling |
| avalanche | a mass of snow, ice and rocks sliding rapidly downhill |
| prodigy | a young person with exceptional abilities |
| crevasse | a deep, open crack |
| pelting | attack by repeatedly hurtling things |
| rehydration | replenishing with water |
| contraband | something imported or exported illegally, like arms or drugs |
| demeanor | someone's outward behavior or bearing |
| glacier | a slowly moving mass or river of ice |
| coherent | able to speak clearly and logically |
| descent | moving downward, dropping or falling |
| ramshackle | in a state of severe disrepair |
| abyss | a deep or seemingly bottomless opening |
| ascent | rising up; climbing upward |
| rappel | descending a surface by using a double coiled rope around the body |
| acclimatization | adjusting to a change in climate |
| incarceration | confined in a particular place (like a jail) |
| summit | the highest point of a hill or mountain |
| monastery | a group of people living under religious vows |
| crampon | a metal plate with spikes attached to a hiking boot |
| claustrophobic | a person who suffers from a severe, irrational fear of confined places |
| pulmonary | having to do with the lungs |
| frostbite | injury to tissues that have been exposed to extreme cold |