Intermediate (B1)
IPA: //ˌbaɪ.sɛnˈtɛn.i.əl//
KK: /baɪˈsɛnˌtɛn.i.əl/
Definition
Relating to an event that occurs every 200 years or marks a 200th anniversary.
Example
The city celebrated its bicentennial with a grand parade and fireworks.
Conversation

Did you hear about the upcoming bicentennial celebration in our town?

Yeah, I read something about it! It's going to be quite a big event.

I think it’s exciting to celebrate something that happens only every 200 years.

Definitely! We should plan to go and enjoy all the festivities.
Synonyms & Antonyms
Synonyms
biannual
centenary
two-hundredth
Definition
A celebration or event that marks the 200th anniversary of something.
Example
The city held a grand festival for its bicentennial celebration.
Conversation

Did you hear about the bicentennial celebration happening next year?

Yeah, I read about it! It's going to be a big event.

I can't wait to see what activities they plan for the bicentennial.
Root Explanation
Bicentennial → It is formed from "bi-" (meaning two) and "centennial" (from Latin "centennium", meaning a hundred years). The word "bicentennial" refers to the celebration of a two-hundred-year anniversary.
Memory Tip
Think of 'two' ('bi-') and 'hundred years' ('centennial') to remember that bicentennial means a celebration of two hundred years.
Visually Confused Words
centennial
tricentennial
semicentennial
quincentennial
vigentennial
centennially
tercentennial
biennial