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"
the proper or conventional behavior on some solemn occasion; "an inaugural ceremony"
a formal event performed on a special occasion; "a ceremony commemorating Pearl Harbor"
celebrate noisily, often indulging in drinking; engage in uproarious festivities; "The members of the wedding party made merry all night"; "Let's whoop it up--the boss is gone!"