cliff, drop, drop-off
['aircraft carrier, carrier, flattop, attack aircraft carrier', 'king penguin, Aptenodytes patagonica', 'cuirass', 'stupa, tope', 'chain mail, ring mail, mail, chain armor, chain armour, ring armor, ring armour', 'Gila monster, Heloderma suspectum', 'file, file cabinet, filing cabinet']