Source : Webster's Revised Unabridged Dictionary (1913)

Sunshade \Sun"shade`\, n.
   Anything used as a protection from the sun's rays.
   Specifically:
   (a) A small parasol.
   (b) An awning.

Source : WordNet®

sunshade
     n 1: a canopy made of canvas to shelter people or things from
          rain or sun [syn: {awning}, {sunblind}]
     2: a handheld collapsible source of shade [syn: {parasol}]