1. Plural of plenary; meetings or sessions in which all members or participants are present.
Usage: Often used in academic, political, or organizational contexts.
2. In religious contexts, plenary indulgences (remission of temporal punishment for sin in Catholic theology).
Usage: Primarily used in Catholic religious discourse; less common in everyday English.

Examples

• The conference held three plenaries over the course of the week.
• All delegates were required to attend the plenaries, though breakout sessions were optional.
• The morning plenaries featured keynote speakers from leading universities.
• Plenaries allow the entire organization to hear the same message at once.
• The board scheduled back-to-back plenaries to discuss the budget and strategic plan.