ceremony

ceremony [n1] ritual; celebratory observation ceremonial, commemoration, custom, formality, function, liturgy, observance, ordinance, parade, rite, sacrament, service, show, solemnity, tradition; concept 386 ceremony [n2] etiquette ceremonial, conformity, decorum, form, formal courtesy, formalism, formality, nicety, politeness, pomp, preciseness, prescription, propriety, protocol, strictness, usage; concept 388