Rite

Part of speech: noun (n.)

The act of performing divine or solemn service, as established by law, precept, or custom; a formal act of religion or other solemn duty; a solemn observance; a ceremony; as, the rites of freemasonry. He looked with indifference on rites, names, and forms of ecclesiastical polity. Macaulay.

Synonyms: Form; ceremony; observance; ordinance.