jumar /jooˈmär/ (mountaineering)

1. A clip which grips the rope when weight is applied, and runs freely along the rope when the weight is taken off (also jumar clamp)
2. A climb using these

To climb using jumars

• okey-dokey
• okimono
• okimonos
• OKing
• Oking
• Okla.
• okra
• okras
• Oks
• okta
• oktas
• -ol
• OLAF
• olanzapine
• Olbers' paradox
• old
• old age
• old age pension
• old-age pension
• old-age pensioner
• old-age pensioners
• old-age pensions
• old as the hills
• old bachelor
• old bachelors