Mountaineer

01 n. An inhabitant of a mountain; one who lives among mountains.

1.
An inhabitant of a mountain; one who lives among mountains.
2.
A rude, fierce person.[Obs.]
“No savage fierce, bandit, or mountaineer.” — Milton.
3.
A person who climbs mountains for sport.

02 v. i. To live or act as a mountaineer; to climb mountains.

1.
To live or act as a mountaineer; to climb mountains.
“You can't go mountaineering in a flat country.” — H. James.