Use the noun papacy when you're talking about the leader of the Roman Catholic Church and the particular authority he holds. The papacy supports reducing poverty, but it does not support women becoming priests.
The office and dignity of the pope, or pontiff, of Rome; papal jurisdiction.
Noun
 the government of the Roman Catholic Church
n.
 The office and dignity of the pope, or pontiff, of Rome;
   papal jurisdiction.
n.
 The popes, collectively; the succession of popes.
n.
 The Roman Catholic religion; -- commonly used by the
   opponents of the Roman Catholics in disparagement or in an opprobrious
   sense.
Papacy
The office and dignity of the pope, or pontiff, of Rome; papal jurisdiction.
Usage Examples
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