ANTLR, ANother Tool for Language Recognition, is a language tool that provides a framework for constructing recognizers, interpreters, compilers, and translators from grammatical descriptions containing actions in a variety of target languages.
ApproachâThe route or walk in to the base of a climb. AscenderâAny mechanical device that slides upward when put on a fixed rope but catches when weight is put on it, allowing a climber to use the rope to move upward or to haul gear. Used in aid climbing, mountaineering rescue and caving.
âº 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: synonyms and related words. Mountaineering & rock climbing. bag. base camp. bivouac.