1. to be in charge of or lead a meeting, ceremony, or other formal gathering
2. to have authority or control over something

Examples

• The judge presides over the courtroom proceedings.
• She presides at the weekly board meetings.
• The mayor presides over city council sessions.
• He presides over a large corporation.
• The principal presides at graduation ceremonies.
• The committee chair presides during all discussions.
• A senior partner presides over the law firm.