a ceremony: a formal event or ritual such as a wedding, graduation, or award ceremony.
結婚式のセレモニーは来月行われる。
The wedding ceremony will be held next month.
表彰セレモニーで代表がスピーチをした。
A representative gave a speech at the award ceremony.
入学セレモニーで校長が挨拶した。
The principal gave a greeting at the entrance ceremony.