Source : Webster's Revised Unabridged Dictionary (1913)

Auspice \Aus"pice\, n.; pl. {Auspices}. [L. auspicium, fr.
   auspex: cf. F. auspice. See {Auspicate}, a.]
   1. A divining or taking of omens by observing birds; an omen
      as to an undertaking, drawn from birds; an augury; an omen
      or sign in general; an indication as to the future.

   2. Protection; patronage and care; guidance.

            Which by his auspice they will nobler make.
                                                  --Dryden.

   Note: In this sense the word is generally plural, auspices;
         as, under the auspices of the king.

Source : WordNet®

auspice
     n : a favorable omen