A fruit consisting of a fleshy outer part—including the skin, which can be thin, soft, or though—and a hard pit or stone on the inside.
The pit consists of two parts, an outer hard part—called an endocarp—and an inner part, where the seed is nestled. The defining character for a fruit to be called a drupe: the stone or pit must be derived from the ovarian wall of the flower. Certain fruits, like the brambles—including blackberry and raspberry—are considered drupes as well. Because of their size and multitude of seeds, they're called drupelets. Some examples include: olives, peaches, mango, almonds, plums, coconut, dates, coffee, etc.