Other Words for Celebration
Celebration as a Noun has these synonyms:
observance, observation, performance, solemnization, hallowing, sanctification, memorialization, commemoration
Example: The celebration of the Eucharist was delayed because the vicar had been called to a sickbed.
Example: The New Year's celebration is planned at Jill's house this year.
praising, extolling, honouring
Example: The ceremony was a celebration of their achievements in space exploration.