[ bahy-sen-ten-ee-uhl ]


  1. pertaining to or in honor of a 200th anniversary:

    bicentennial celebration; a bicentennial exposition.

  2. consisting of or lasting 200 years:

    a bicentennial period.

  3. occurring every 200 years:

    the bicentennial return of a comet.


  1. a 200th anniversary:

    The United States had its bicentennial in 1976.

  2. a celebration of such an anniversary.

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Confusables Note

See bi- 1.

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Other Words From

  • bicen·tenni·al·ly adverb

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Word History and Origins

Origin of bicentennial1

First recorded in 1880–85; bi- 1 + centennial

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Example Sentences

Williams worked with the company again for the 1999 film Bicentennial Man.

And Ralph Lauren received the James Smithson Bicentennial Medal.

“It was on the bicentennial: 4th of July 1976,” Martinez recalls.

Biographer Paula Byrne, author of The Real Jane Austen, celebrates the bicentennial of the beloved novel.

I grew up in Massachusetts, where the Bicentennial was a spectacularly big deal.

There is excitement over bicentennial celebration, and I always find something of interest in what is daily occurring.

I believe that we can make the years leading to our Bicentennial the best four years in American history.

As we begin our Bicentennial, America is still one of the youngest nations in recorded history.

Let us engrave it now in each of our hearts as we begin our Bicentennial.