dark area in which sunlight or other bright light is blocked

Shade is produced when the sun is shining and an object, a tree for example, blocks the direct sunlight so that it cannot reach a certain spot. The dark image which the object casts on the ground (or on another object) is called shadow, not shade.

This covered stall creates shade for the people and fruit underneath

Shade can also mean a darker or lighter color of the same base color. For example: in a picture of a tree's shadow, the grass in the shade will be a darker shade of green than the grass out of the shade.