prin·cess /ˈprɪn(t)səs, ˈprɪnˌsɛs, || prɪnˈsɛs/
  公主,王妃,公爵夫人
  Prin·cess n.
  1. A female prince; a woman having sovereign power, or the rank of a prince.
     So excellent a princess as the present queen.   --Swift.
  2. The daughter of a sovereign; a female member of a royal family.
  3. The consort of a prince; as, the princess of Wales.
  Princess royal, the eldest daughter of a sovereign.
  ◄ ►
  princess
       n : a female member of a royal family other than the queen
           (especially the daughter of a sovereign)