name: A surname (very rare: popularity rank in the U.S.: #19911)
noun: The forming of a tub.
noun: Collectively, materials for tubs.
noun: A bath taken in a tub.
noun: A lining of timber or metal around the shaft of a mine, especially a series of cast-iron cylinders bolted together, used to enable those who sink a shaft to penetrate quicksand, water, etc., with safety.
noun: A hazing ritual in which the victim's head is held underwater.
noun: The activity of rowing in crudely-made boats.