| A | B |
| altitude | the height of an object above sea level |
| ascent | the act of rising or climbing up |
| avalanche | the sudden movement of a large mass of snow, ice, or rock down a mountainside |
| camp | a central setup of tents where food, equipment, and medical supplies are stored; a relay site for climbers |
| crampon | metal frame with spikes worn on hiking boots for climbing on ice |
| crevasses | deep, open cracks in a glacier |
| expedition | a journey or trip taken for a specific reason |
| frostbite | the freezing, or partial freezing, of some part of the body |
| Himalayan mountain range | the highest mountain range in the world, rising between India and Asia |
| hypoxia | a lack of oxygen in the tissues of the body that causes lightheadedness and other symptoms |
| Sherpas | people who moved from Tibet to the Everest area of Nepal more than 500 years ago |
| summit | the highest point on a mountain |