scabbard
['swab, swob, mop', 'platypus, duckbill, duckbilled platypus, duck-billed platypus, Ornithorhynchus anatinus', 'guillotine', 'crutch', 'frilled lizard, Chlamydosaurus kingi', "yellow lady's slipper, yellow lady-slipper, Cypripedium calceolus, Cypripedium parviflorum", 'projectile, missile']