The term high altitude describes a condition or location that is far above the ground or sea level. It often refers to great vertical distance or elevation in relation to the Earth’s surface.
This expression is commonly used to describe geographical areas, environmental conditions, or even non-living objects that are situated high above the typical ground level. It conveys either a large vertical scale (tall structures) or great height (mountains, flight levels).
“High altitude conditions often result in lower temperatures and reduced oxygen pressure.”
While the phrase applies mostly to physical height, it can also describe situations where elevation or altitude affects climate, performance, or technical operations.
Author’s summary:
The phrase “high altitude” refers to significant elevation above sea level or ground, often describing natural settings or conditions influenced by great height.