backpack, back pack, knapsack, packsack, rucksack, haversack
['ashcan, trash can, garbage can, wastebin, ash bin, ash-bin, ashbin, dustbin, trash barrel, trash bin', 'ballpoint, ballpoint pen, ballpen, Biro', 'studio couch, day bed', 'sunglasses, dark glasses, shades', 'violin, fiddle', 'vestment', 'mouse, computer mouse']