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bicentennial

American  
[bahy-sen-ten-ee-uhl] / ˌbaɪ sɛnˈtɛn i əl /

adjective

  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.


noun

  1. a 200th anniversary.

    The United States had its bicentennial in 1976.

  2. a celebration of such an anniversary.

Commonly Confused

See bi- 1.

Other Word Forms

Etymology

Origin of bicentennial

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

Explanation

The two-hundredth anniversary of something is its bicentennial. In 1976, the United States celebrated its bicentennial, two hundred years after adopting the Declaration of Independence. The word bicentennial adds the prefix bi-, or "two," to centennial, which is rooted in the Latin centum, or "one hundred." The U.S. is a relatively young country, so we've only celebrated a few bicentennials, including the two-hundredth birthdays of George Washington and Abraham Lincoln. You can use this word as an adjective too: "Next year is the bicentennial anniversary of our ancestors' arrival in North America."

Keep Reading on Vocabulary.com

Vocabulary lists containing bicentennial

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

By 1976, mom and dad had split, and as the bicentennial approached, it looked like I wouldn’t get to see the usual wild display of pyrotechnics and potential loss of limbs.

From Salon Jul. 3, 2026

Historians are in broad agreement that this year’s celebration has garnered far less attention than the bicentennial, marked in 1976, which generated blanket media coverage and widespread national excitement.

From Los Angeles Times Jul. 3, 2026

The bicentennial quarter, minted for the occasion, still occasionally turns up in pocket change.

From The Wall Street Journal Jul. 2, 2026

Another capsule, created for that year's bicentennial, is stored at the National Archives, to be opened in 2076, said Rios.

From Barron's Jul. 2, 2026

He picked out a bicentennial quarter and handed it to Rufus.

From "Kindred" by Octavia Butler

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