noun
A mountaineering and geography term for a sharp, narrow ridge formed by glacial erosion. Used in climbing contexts.
from French
登山者はアレートを慎重に進んだ。
The climbers carefully advanced along the arête.
この山のアレートは非常に鋭く、経験者向けだ。
The arête on this mountain is very sharp and is for experienced climbers.