projectile, missile
['barrel, cask', 'ashcan, trash can, garbage can, wastebin, ash bin, ash-bin, ashbin, dustbin, trash barrel, trash bin', 'coil, spiral, volute, whorl, helix', 'hatchet', 'barrow, garden cart, lawn cart, wheelbarrow', 'streetcar, tram, tramcar, trolley, trolley car', 'safe']