also: コンクラーヴェ
noun
conclave
Specifically refers to the assembly of cardinals to elect a new pope in the Roman Catholic Church.
新しい教皇を選ぶために、枢機卿たちはコンクラーベに集まった。
The cardinals gathered in conclave to elect a new pope.
Standard katakana spelling for the Catholic conclave.
Alternate katakana spelling reflecting a closer approximation of the Italian pronunciation.
Borrowed from Italian 'conclave', ultimately from Latin 'conclave' meaning 'a room that can be locked'.