noun
starting point of an ascent; foot of stairs or mountain
Refers to the place where one begins climbing stairs, a slope, or a mountain. 登り口 is typical for mountain trails, while 上り口 is common for stairs.
富士山の登り口はいくつかある。
There are several starting points for climbing Mt. Fuji.
階段の上り口で待っていてください。
Please wait at the foot of the stairs.
Irregular kanji usage; 昇 is not standard for this word.
Mixed kana-kanji spelling; less common but clear.
Often used for the foot of stairs or an upward path.
Compound of 登り (nobori, 'climbing') + 口 (kuchi/guchi, 'mouth, opening'). The reading のぼりくち is a less common variant.