also: とはん
noun, noun or participle which takes 'suru', intransitive verb
Formal or technical term for climbing, especially in mountaineering or rock climbing contexts. Often used in compound nouns like 登攀技術 (climbing technique).
彼はエベレスト登攀に成功した。
He succeeded in climbing Everest.
登
I am practicing repeatedly to improve my climbing skills.