noun

• A ritual, with religious or cultural significance.
• An official gathering to celebrate, commemorate, or otherwise mark some event.
• (uncountable) A formal socially established behaviour, often in relation to people of different ranks; formality.
• (uncountable) Show of magnificence, display, ostentation.
• (obsolete) An accessory or object associated with a ritual.
• (obsolete) An omen or portent.