Wordnet 3.0
NOUN (1)
1. 
 the smallest sovereign state in the world; 
 the see of the Pope (as the Bishop of Rome); 
 home of the Pope and the central administration of the Roman Catholic Church; 
 achieved independence from Italy in 1929; 
[syn: Holy See, The Holy See, State of the Vatican City]
WordNet (r) 3.0 (2006):
Holy See
    n 1: the smallest sovereign state in the world; the see of the
         Pope (as the Bishop of Rome); home of the Pope and the
         central administration of the Roman Catholic Church;
         achieved independence from Italy in 1929 [syn: Holy See,
         The Holy See, State of the Vatican City]