仪式

The ceremony was abbreviated by rain.

religious rites/ritual

presentation ceremony

award presentation ceremony

flag-rising ceremony

ceremony for signing an agreement; signing ceremony

ground-breaking ceremony

opening ceremony

unveiling ceremony

wedding/marriage ceremony

ribbon cutting ceremony

welcoming ceremony

official function

departure ceremony

prize-giving ceremony

foundation stone laying ceremony

lighting of the cauldron

award ceremony

conduct a ceremony; officiate at a ceremony

hold/perform/conduct/stage a ceremony

complete/abridge a ceremony

attend a ceremony; be present at a ceremony