mailbox, letter box
['guillotine', 'backpack, back pack, knapsack, packsack, rucksack, haversack', 'chain mail, ring mail, mail, chain armor, chain armour, ring armor, ring armour', 'whistle', 'soap dispenser', 'toilet tissue, toilet paper, bathroom tissue', 'bannister, banister, balustrade, balusters, handrail']