conclave
noun [ C ] uk/ˈkɒŋ.kleɪv/ us/ˈkɑːn.kleɪv/
formal秘密会议,秘密集会
a private meeting at which the discussions are kept secret
religion specialized(天主教)枢机选举教皇的秘密会议
a meeting of cardinals (= Catholic priests) at which the Pope is elected
Compare: congress (MEETING)consultationconvention (MEETING)convocation forum (MEETING)seminarsummit (MEETING)symposium synod