1.
slope, incline, hillside
A surface that is tilted at an angle rather than being flat or vertical. Used for natural terrain such as mountainsides and hills, as well as man-made inclines.
急な斜面を登った。
I climbed a steep slope.
雪の斜面をスキーで滑り降りた。
I skied down the snowy slope.
大雨の影響で斜面が崩れ、道路が通行止めになった。
The slope collapsed due to heavy rain, and the road was closed to traffic.
USAGE:
A factual, somewhat technical term commonly used in geography, construction, disaster reporting, and skiing contexts. Frequently modified by 急な (steep) or 緩やかな (gentle).
COMMON COLLOCATIONS:
- 急な斜面: steep slope
- 緩やかな斜面: gentle slope
- 斜面が崩れる: the slope collapses (landslide)
- 斜面を登る: to climb a slope
SIMILAR WORDS:
- 坂: hill, slope (everyday word, usually refers to roads)
- 傾斜: inclination, gradient (more technical/abstract)