bicentennial
n. countable C1 Advanced US //ˌbaɪsɛnˈtɛniəɫ// UK //baɪsɪntˈɛnɪəl// bi·cen·ten·ni·al
n. the 200th anniversary of an important event or the founding of a country. It is a special time for people to celebrate and remember the past.
n. the 200th anniversary of a significant event or the establishment of a nation. Often used to describe the period of celebration surrounding such a milestone.
The city held a big parade to celebrate its bicentennial.
The bicentennial of the nation's independence was marked by a series of public lectures and historical exhibitions across the capital.
While the bicentennial provided a moment for national reflection, it also sparked intense debates among historians regarding the accuracy of the official narrative presented in the commemorative ceremonies.
From bi- + centennial.