what does plenary mean

The word "plenary" means full, complete, or absolute. It often describes something that is unqualified or unrestricted in scope, such as authority or power. In a meeting context, a plenary session refers to a meeting attended by all members of a group or organization, where decisions affecting the whole body are made. For example, someone with plenary authority has complete and final power to act on all matters related to a project, and a plenary session is when all members come together, typically in a conference or legislative setting.