canyoning Syllabification: (can·yon·ing)Pronunciation: /ˈkanyəniNG/ (also canyoneering /ˌkanyəˈni(ə)riNG/)Translate canyoning | into French | into Italian Definition of canyoning noun the sport of exploring a canyon by engaging in such activities as rappelling, rafting, and waterfall jumping. canyoning in other Oxford dictionaries Definition of canyoning in the British & World English dictionary