Wordnet 3.0
NOUN (1)
1.
a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights;
[syn: estate of the realm, estate, the three estates]
WordNet (r) 3.0 (2006):
the three estates
n 1: a major social class or order of persons regarded
collectively as part of the body politic of the country
(especially in the United Kingdom) and formerly possessing
distinct political rights [syn: estate of the realm,
estate, the three estates]