Procession (noun)

1. A group of people or vehicles moving forward in a formal or ceremonial manner.
2. A sequence of events or actions that take place in a specific order.

Origin:

From middle english, from old french, from latin processiōnem (nominative processiō) ("a going forth, march, advance"), from procedere ("to go forwar.d")

Examples:

1. The procession of the bride and groom was led by their parents.
2. The funeral procession was led by the hearse.
3. The annual parade was a colorful procession of floats, bands, and dancers.
4. The procession of cars on the highway was moving at a very slow pace.
5. The procession of guests was led by the host and hostess to the reception.