bicentennial
Word family
- bicentenniallyadverbC2
Synonym discussion
Sense: noun/1
All five words refer to commemorative timescales, but they differ in span. Anniversary is the general term for any yearly return of a past event (a first anniversary, a fiftieth anniversary). Centennial refers specifically to a 100-year mark, while bicentennial is the 200-year equivalent. Sesquicentennial (150 years) and tercentennial (300 years) are rarer but follow the same pattern. In American English, bicentennial is the standard noun and adjective for a 200-year celebration; British English prefers bicentenary for the same concept. For example, the US celebrated its bicentennial in 1976, while the UK celebrated the bicentenary of the Battle of Trafalgar in 2005.
Common collocations
Etymology
Formed from the prefix bi- (two) and centennial (pertaining to 100 years), which itself comes from Latin centum (hundred) and annus (year). The word was first used in the late 19th century, modeled on the earlier word centennial.