submarine, pigboat, sub, U-boat
['odometer, hodometer, mileometer, milometer', 'tub, vat', 'missile', 'police van, police wagon, paddy wagon, patrol wagon, wagon, black Maria', 'bannister, banister, balustrade, balusters, handrail', 'motor scooter, scooter', 'washbasin, handbasin, washbowl, lavabo, wash-hand basin']