Debris avalanche is a geological phenomenon that occurs when a massive amount of material, such as rocks, soil, and other debris, moves rapidly down a slope. There are several synonyms for this term, including rockslide, landslip, rockfall, and mudslide. A rockslide refers to the movement of rocks down a slope due to gravity, while a landslip describes a sudden and rapid movement of soil and rocks. Rockfall refers to smaller rocks that detach from cliffs or steep mountain slopes and tumble down, while a mudslide is a type of debris avalanche that involves a mixture of mud, rock, and water that flows down a slope. Each of these synonyms describes a distinct type of debris avalanche that can cause significant damage to buildings, infrastructure, and natural habitats.