berry has two meanings: one based on a botanical definition, the other on common identification. True berries are a simple fruit having seeds and edible pulp produced from a single ovary. In common parlance, however, berries are more broadly recognized as small, round or semi-oblong, usually brightly colored, sweet or sour fruit desirable in a healthy diet. In botany, the berry is the most common type of simple fleshy fruit in which the entire ovary wall ripens into an edible pericarp. The flowers of these plants have a superior ovary and one or more carpels within a thin covering and fleshy interiors. The seeds are embedded in the common flesh of the ovary. Examples of botanical berries include the tomato, grape, lychee, loquat, lucuma, plantain, avocado, persimmon, eggplant, guava, uchuva (ground cherry), and chili pepper. The fruit of citrus, such as the orange, kumquat and lemon, is a modified berry called a hesperidium. The fruit of cucumbers and their relatives are modified berries called "pepoes". A plant that bears berries is referred to as bacciferous. True berries are distinguishable from false berries like blueberries and cranberries for which the fruit is formed from other parts of the flower, not just the ovary. Also not true berries, aggregate fruits like raspberries are collections of small fruits, and accessory fruits like strawberries are formed from parts of the plant other than the flower. As explained below, none of these is a true berry. Source:http://en.wikipedia.org/wiki/Berry Filling is a food mixture used to fill pastry, sandwiches and some other types of dishes, a process referred to as stuffing.