bicentenary
🇺🇸
/ˌbaɪsenˈtenəri/
🇬🇧
/ˌbaɪsenˈtiːnəri/
A celebration of the 200th anniversary of an event.
The country held a grand parade for its constitution's bicentenary.
Relating to the 200th anniversary of an event.
The museum organized bicentenary exhibits to honor the historical figure.