ceremony - WordReference.com English Thesaurus
https://www.wordreference.com/synonyms/ceremony
WEBSynonyms: ritual, rite, observance, service, solemnity, formality, ceremonial, custom, tradition, liturgy, ordinance, sacrament, liturgical practice, protocol, etiquette, politeness, decorum, propriety, preciseness, strictness, nicety, formalism, ceremoniousness, convention, conventionality, usage, prescription, incantation, mummery.
DA: 95 PA: 81 MOZ Rank: 98