1. a group of people or vehicles moving forward in an orderly line, especially as part of a ceremony
2. the action of moving forward in such an orderly way

Examples

• The wedding procession walked slowly down the aisle.
• A funeral procession made its way through the town.
• The graduation procession included all the faculty and students.
• We watched the colorful procession during the festival.
• The procession of cars stretched for several blocks.
• Religious processions are common during Easter week.
• The royal procession drew thousands of spectators.