Answer: celebrating

AnswerCrossword Clue
celebratingMark (a significant or happy day or event), typically with a social gathering
celebratingCELEBRATE, to mark by solemn ceremonies
celebratingPerform (a religious ceremony) publicly and duly, in particular officiate at (the Eucharist)
celebratingReach (a birthday or anniversary)
celebratingDo something enjoyable to mark such an occasion
celebratingHonor or praise publicly