slightly dark because something blocks direct light from the sun

Nothing will grow in the shaded part of the garden. 花园里背阴的地方什么也长不出来。

coloured slightly darker than other parts of a diagram, picture or painting

The shaded areas of the plans show where the houses will be built. 规划图中的阴影区域显示了房屋将建在哪里。

including many subtle (= not obvious) and slight differences, in a way that is skilful

Her playing is subtle and beautifully shaded. 她的演绎细腻且极富层次。