Drupe

The peach is a typical drupe (stone fruit)

In botany, a drupe is a type of fruit in which an outer fleshy part (exocarp skin and mesocarp flesh) surrounds a shell (the pit or stone) of hardened endocarp, with a seed inside. These fruits develop from a single carpel, and mostly from flowers with superior ovaries. Plants that produce drupes include:

jujube
mango
olive
all members of the genus Prunus: almond (in which the mesocarp is somewhat leathery), apricot, cherry, peach, and plum

The term stone fruit can be a synonym for drupe or, commonly, it can mean the fruits of Prunus species specifically.

Drupes, with their sweet, fleshy outer layer, attract the attention of animals as a food, and the plant species benefits from the resulting dispersal of the seed, protected in an undigestible endocarp (pit or stone).

The coconut is also a drupe, but the mesocarp is fibrous or dry (in this case, it is called the husk), so this type of fruit is sometimes classified as a simple dry fruit, fibrous drupe.

Blackberry, a bramble fruit
of aggregated drupelets ()

A drupelet is one unit of an aggregate fruit which has essentially the structure of a drupe. Bramble fruits (for example, blackberry or raspberry) are aggregates of drupelets.