cliff, drop, drop-off
['snail', 'bighorn, bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep, Ovis canadensis', 'knot', 'hip, rose hip, rosehip', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'rock python, rock snake, Python sebae', 'pineapple, ananas']