mountaineer
🇺🇸
/ˌmaʊntnˈɪr/
🇬🇧
/ˌmaʊntəˈnɪə(r)/
A person who enjoys climbing mountains for fun or as a sport.
The mountaineer carefully made his way up the steep trail, using his expertise to avoid any dangerous falls.
山岳家は危険な転落を避けるために自分の専門知識を用いて、険しい山道を慎重に上りました。