conclave
Definitions
A private meeting or secret assembly, especially one held by cardinals to elect a new pope.
A gathering of a group or association, typically one that is exclusive or held in private.
Examples
The cardinals gathered in a secret conclave to elect the new pope.
The CEO held a private conclave with his top advisors to discuss the company's future.
After a long conclave behind closed doors, the committee finally reached a unanimous decision.
Synonyms
assembly gathering meeting council convention congress caucus