1. people who climb mountains as a sport or profession

Examples

• The experienced mountaineers reached the summit at dawn.
• Local mountaineers offered to guide the expedition up the peak.
• She joined a club for mountaineers who climb in the Alps.
• The rescue team consisted of skilled mountaineers and medics.
• Many mountaineers train for years before attempting Everest.
• The mountaineers used ropes and ice axes during their ascent.