pencil sharpener
['dishwasher, dish washer, dishwashing machine', "plane, carpenter's plane, woodworking plane", 'ashcan, trash can, garbage can, wastebin, ash bin, ash-bin, ashbin, dustbin, trash barrel, trash bin', 'cash machine, cash dispenser, automated teller machine, automatic teller machine, automated teller, automatic teller, ATM', 'refrigerator, icebox', 'screen, CRT screen', 'iron, smoothing iron']