Simple English definitions for legal terms
Read a random definition: Federal Home Loan Bank
A plenary session is a big meeting where everyone in a group comes together. This means that all the people who are part of the group attend the meeting, not just some of them. For example, if it's a meeting for a government group, all the people who work for the government will be there, not just a few of them.
Plenary session
A plenary session is a meeting where all members of a group are expected to attend. For example, in a legislative plenary session, all legislators are required to attend, not just certain committee members.
These examples illustrate the definition of a plenary session because they both involve a meeting where all members of a group are expected to attend. In the case of the annual general meeting, all shareholders are invited to attend and vote on important matters related to the company. Similarly, in the case of a conference's opening ceremony, all attendees are expected to be present to hear important announcements and keynote speeches.