Plenum
/ˈpliːnəm/
Definition 1 of 3
Pro Tip 1/3Group Involvement
The term emphasizes that every member is expected to attend and participate. 
The president requested a plenum to ensure everyone's input on the new policy.
Pro Tip 2/3Formal Gathering
Used for official or formal meetings, not casual get-togethers. 
The annual shareholders' plenum is scheduled for next month.
Pro Tip 3/3Decision Context
Often associated with meetings that aim to make important decisions. 
During the plenum, the committee will vote on the proposed changes.