to manage or act as chair at a meeting or a ceremony. The mayor presided at the meeting, assuring that the speeches would be very short.She presided at the ceremony.
to be in control of the order and procedures of a meeting or ceremony. The vice president will have to preside over the next meeting.I will be glad to preside over the discussion.
To have or exercise authority over something or someone; be in charge of something or someone: The vice president presided over the committee meeting because the president was absent.