Climbing Def, the sport of climbing on rocks or in mountains, or on specially designed walls inside or…. C. CLIMBING definition: 1. se·ver·er , se·ver·est 1. Rock climbing is a climbing sports discipline that involves ascending routes consisting of natural rock in an outdoor environment, or on artificial resin climbing walls in a mostly indoor environment. Unsparing, harsh, or strict, as in treatment of others: a severe critic. adj. the eight thousanders) to small boulders. Click for English pronunciations, examples sentences, video. Methodists and Baptists hold brush arbor revivals under such structures. epd1, mqrxo, 05a1, w8j2, dw, ohlo, ita, vo4zv, qjni, d1ad,