A ceremony is an activity, infused with ritual significance, performed on a certain occasion. For example, the Japanese tea ceremony was frequently held as a ritual of hospitality at the arrival of a guest.

Traditionally, a ceremony may mark a rite of passage in a personal human career, marking the significance of (for example):

Other, society-wide ceremonies may mark annual or seasonal or recurrent events like: Yet other ceremonies underscore the importance of irregular special occasions, such as: Often ceremonies have a physical display or theatrical component: dance, a procession, the laying on of hands. But even greater importance usually attaches to a declaratory verbal pronouncement which may explain or cap the mummery, for instance:

  • I now pronounce you man and wife.
  • Happy New Year!
  • I swear to serve and defend the nation ...

Both physical and verbal components of a ceremony may become part of a liturgy.