What does abseil mean?
To abseil is to descend a steep or vertical surface — most often a cliff or rock face — by means of a rope secured above, controlling the descent through a friction device attached to one's harness. The word functions primarily as a verb, though it also serves as a noun for the descent itself, and its derived forms include "abseiling" (the activity) and "abseiler" (the person doing it). Borrowed directly from German, where "ab" means down and "Seil" means rope, the term is the standard expression throughout Britain and much of the Commonwealth; American English instead uses "rappel," which refers to precisely the same technique. Abseiling appears in two broad settings: recreational climbing and mountaineering, where it allows climbers to descend terrain too difficult to walk down, and professional contexts such as mountain rescue, military operations, and industrial maintenance on tall structures. The word carries connotations of skill, controlled risk, and adventure.
To descend a steep or vertical surface using a rope and a friction device, lowering oneself in a controlled manner.
"They abseiled into the gorge to inspect the old bridge supports."
Regular verb: abseils, abseiled, abseiling.
A descent made by rope in this way.
"The final abseil of the route required careful anchor placement."
As a countable noun referring to individual descents.
"The training day included six separate abseils of increasing difficulty."
The word comes straight from German — 'ab' (down) plus 'Seil' (rope) — so every time you say it, you're literally saying 'down-rope.'
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of abseil
The word "abseil" was borrowed from German "abseilen," a compound of "ab" (down) and "Seil" (rope), coined within German mountaineering vocabulary in the late nineteenth century as alpinism developed roped descent techniques. It entered English in the early twentieth century through British climbers exposed to continental Alpine practice, and remains the dominant term in British English. Its American counterpart, "rappel," derives independently from French "rappeler" (to pull through), reflecting the different national traditions of the sport.
Related word forms
How abseil is actually used
"Abseil" is standard in British English; American speakers overwhelmingly prefer "rappel." The verb is regular, forming "abseiled" and "abseiling," and is used in both recreational climbing and professional contexts such as rescue work and industrial rope access.
Easily confused with abseil
"Rappel" is the American term for exactly the same activity, while "abseil" is the British term — they are synonyms rather than different actions.