abseil /ˈæb.seɪl/ verb [I] UK (USrappel) ↑Verb Endings for abseil
► F0 to go down a very steep slope by holding on to a rope that is fastened to the top of the slope: » She abseiled down the rock face.Thesaurus+: ↑Mountaineering and rock climbingabseilnoun [C] UK (USrappel)