cel·e·bra·tion 
/ˌsɛləˈbreɪʃən/ noun
plural cel·e·bra·tions /ˌsɛləˈbreɪʃən/ noun 1 [count] : a party or other special event that you have for an important occasion, holiday, etc.
▪ a victory/birthday/holiday celebration ▪ the town's bicentennial celebrations 2 [noncount] : the activity of doing special, enjoyable things for an important occasion, achievement, etc. : the activity of celebrating
▪ It was a night of celebration. ▪ We're having a dinner in celebration of their anniversary. [=as a way of celebrating their anniversary] ▪ Your promotion is (a) cause for celebration. 3 [count] : the performance of a religious ceremony — usually singular ▪ a celebration of Mass
▪ a victory/birthday/holiday celebration ▪ the town's bicentennial celebrations
▪ It was a night of celebration. ▪ We're having a dinner in celebration of their anniversary. [=as a way of celebrating their anniversary] ▪ Your promotion is (a) cause for celebration.
