Definitions of shade:

• noun:   protective covering that protects something from direct sunlight

  Example: "They used umbrellas as shades"

• noun:   a representation of the effect of shade in a picture or drawing (as by shading or darker pigment)
• noun:   a quality of a given color that differs slightly from a primary color

  Example: "After several trials he mixed the shade of pink that she wanted"

• noun:   a position of relative inferiority

  Example: "An achievement that puts everything else in the shade"

• noun:   relative darkness caused by light rays being intercepted by an opaque body

  Example: "It is much cooler in the shade"

• noun:   a mental representation of some haunting experience
• noun:   a slight amount or degree of difference

  Example: "The new model is a shade better than the old one"

• noun:   a subtle difference in meaning or opinion or attitude

  Example: "Don't argue about shades of meaning"

• verb:   protect from light, heat, or view

  Example: "Shade your eyes when you step out into the bright sunlight"

• verb:   represent the effect of shade or shadow on
• verb:   cast a shadow over
• name:  A surname (rare: 1 in 25000 families; popularity rank in the U.S.: #3155)