ceremony

nouns

a formal event performed on a special occasion
"a ceremony commemorating Pearl Harbor"
is derived from
any activity that is performed in an especially solemn elaborate or formal way
"the ceremony of smelling the cork and tasting the wine"; "he makes a ceremony of addressing his golf ball"; "he disposed of it without ceremony"
is derived from
is derived from
is a type of (narrower)
any specific behavior
"they avoided all recreational activity"
the proper or conventional behavior on some solemn occasion
"an inaugural ceremony"
is derived from
is derived from
is a type of (narrower)
any specific behavior
"they avoided all recreational activity"