A cup is an open-top container used to hold liquids for pouring or drinking. Although mainly used for drinking, it also can be used to store solids for pouring. Cups may be made of glass, metal, china, pottery, wood, stone, bone, polystyrene, plastic, aluminium or other materials, and are usually fixed with stem, handles, or other adornments, though a beaker has no handle or stem. Cups are used for quenching thirst across a wide range of cultures and social classes, and different styles of cups may be used for different liquids or in different situations. Cups of different styles may be used for different types of liquids or other foodstuffs, in different situations, or for decoration.

A bowl is a typically round dish or container generally used for preparing, serving, storing, or consuming food. The interior of a bowl is characteristically shaped like a spherical cap, with the edges and the bottom forming a seamless curve. This makes bowls especially suited for holding liquids and loose food, as the contents of the bowl are naturally concentrated in its center by the force of gravity. The exterior of a bowl is most often round, but can be of any shape, including rectangular.