tricycle, trike, velocipede
['backpack, back pack, knapsack, packsack, rucksack, haversack', 'punching bag, punch bag, punching ball, punchball', 'tow truck, tow car, wrecker', 'racer, race car, racing car', 'guillotine', 'ashcan, trash can, garbage can, wastebin, ash bin, ash-bin, ashbin, dustbin, trash barrel, trash bin', 'walking stick, walkingstick, stick insect']