v. 1 tr. mark (a festival or special event) with festivities etc. 2 tr. perform publicly and duly (a religious ceremony etc.). 3 a tr. officiate at (the Eucharist). b intr. officiate, esp. at the Eucharist. 4 intr. engage in festivities, usu. after a special event etc. 5 tr. (as celebrated adj.) publicly honoured, widely known. celebration n. celebrator n. celebratory adj.
[ L celebrare f. celeber -bris frequented, honoured ]