1. (noun) an established ceremony prescribed by a religion

• religious rite

2. (noun) any customary observance or practice

• ritual

1. (noun) an established ceremony prescribed by a religion

• circumcision
• last rites
• liturgy
• office
• orgy
• vigil
• watch

2. (noun) any customary observance or practice

• betrothal
• espousal
• marriage
• marriage ceremony
• wedding
• rite of passage

1. (noun) an established ceremony prescribed by a religion

• religious ceremony
• religious ritual

2. (noun) any customary observance or practice

• custom
• usage
• usance

1. (noun) an established ceremony prescribed by a religion

• ritual

2. (noun) any customary observance or practice

• ritual
• ritual
• ritualise
• ritualize