Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
rappel is a noun and verb meaning "(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". It carries 2 recorded senses.
descend by means of a rappel
“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”
sport
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for rappel come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.