abseil

Noun

• (mountaineering) a descent of a vertical cliff or wall made by using a doubled rope that is fixed to a higher point and wrapped around the body

Verb

• lower oneself with a rope coiled around the body from a mountainside
  • The ascent was easy--roping down the mountain would be much more difficult and dangerous
    
  • You have to learn how to abseil when you want to do technical climbing
    

Related words

• Synonyms: 
  rappel , rope down