Wiktionary
longe line
alt. A rope-like piece of equipment, usually 20 meters or longer in length, attached to the bridle, longeing cavesson, or halter of a horse to provide control while longeing. n. A rope-like piece of equipment, usually 20 meters or longer in length, attached to the bridle, longeing cavesson, or halter of a horse to provide control while longeing.