Source : Webster's Revised Unabridged Dictionary (1913)

Czarina \Cza*ri"na\ (z?-r?"n?), n. [Cf. G. Zarin, Czarin, fem.,
   Russ. tsaritsa.]
   The title of the empress of Russia.

Source : WordNet®

czarina
     n : the wife or widow of a czar [syn: {tsarina}, {tzarina}, {czaritza},
          {tsaritsa}]