1. (noun) a formal event performed on a special occasion

• ceremonial
• ceremony
• observance

1. (noun) a formal event performed on a special occasion

• affair
• function
• occasion
• social function
• social occasion

1. (noun) a formal event performed on a special occasion

• circumstance
• commemoration
• memorialisation
• memorialization
• dedication
• exercise
• fire walking
• formalities
• formality
• funeral
• hymeneals
• nuptials
• wedding
• wedding ceremony
• induction
• initiation
• installation
• maundy
• military ceremony
• opening
• pageant
• pageantry
• potlatch

1. (noun) a formal event performed on a special occasion

• celebrate
• keep
• observe
• ceremonial
• ceremonial