Wordnet 3.0
NOUN (1)
1.
a female member of a royal family other than the queen (especially the daughter of a sovereign);
The Collaborative International Dictionary of English v.0.48:
Princess \Prin"cess\, n. [F. princesse. See Prince, and cf.
Princesse.]
1. A female prince; a woman having sovereign power, or the
rank of a prince. --Dryden.
[1913 Webster]
So excellent a princess as the present queen.
--Swift.
[1913 Webster]
2. The daughter of a sovereign; a female member of a royal
family. --Shak.
[1913 Webster]
3. The consort of a prince; as, the princess of Wales.
[1913 Webster]
Princess royal, the eldest daughter of a sovereign.
[1913 Webster]
WordNet (r) 3.0 (2006):
princess
n 1: a female member of a royal family other than the queen
(especially the daughter of a sovereign)
Moby Thesaurus II by Grady Ward, 1.0:
21 Moby Thesaurus words for "princess":
Kaiserin, begum, crown princess, czarina, empress, grand duchess,
infanta, kumari, kunwari, maharani, malikzadi, princesse, queen,
queen consort, queen regent, queen regnant, raj-kumari, rani,
shahzadi, sovereign princess, sovereign queen