a festive celebration or occasion.

festivities, festive events or activities

the festivities of Christmas.

festive character or quality; gaiety; merriment.

noun

amusement , bash * , blowout * , carousal * , clambake , conviviality , do * , entertainment , festival , fun , fun and games , gaiety , happiness , hilarity , hoopla , jamboree , jollity , joviality , joyfulness , levity , merriment , merrymaking , mirth , party , pleasure , revel , reveling , revelment , shindig * , sport , whoopee , wingdingnotes:a festival is a celebration for a specific occasion; festive means joyous , celebratory , or merry; festivity is any joyous diversion , rejoicing , revelry , affair , celebration , fete , function , gala , occasion , soiree , festiveness , fanfare