Other forms: shades; shaded; shading
Shade is a break from the glare of the sun, like the shade of a big tree or the shade under a beach umbrella.
Other meanings of shade also come from the sense of "blocking the sun," like a window shade, the shade that diffuses the light from a lamp, or the shades (or sunglasses) you wear at the beach. The same is true when shade is a verb: "This hat is ridiculously big, but it really shades my face from the sun!" If you "throw shade," you're criticizing or expressing contempt for someone in a public way.