olive

Definition:

The olive is the small, oval fruit from an olive tree, which is mostly grown in the regions surrounding the Mediterranean Sea.

Olive trees are a type of large evergreen shrub with tiny white flowers. They grow best in hot weather and can survive well with little water.
The olive tree's fruit is green in color, changing to black as they ripen. Olives were used for eating and extracting oil.
Olive oil was used for cooking, for lighting lamps, and for religious ceremonies.
In the Bible, olive trees and branches are sometimes used figuratively to refer to people.