A formal event held on a special occasion, such as a wedding, graduation, or inauguration. The graduation ceremony was attended by hundreds of students and their families.
A set of formal acts, often fixed and traditional, performed on a special occasion. The ceremony included a series of rituals that have been passed down through generations.
The formal activities conducted on some solemn or important public or state occasion. The inauguration ceremony of the new president was broadcasted live on television.
Formal behaviour, etiquette, or conventional politeness, often emphasising outward display (uncountable). He handed her the letter without ceremony.