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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:

"I came to the US in 1975 from Vietnam and... I was here for the bicentennial," Dang told AFP, noting she drove 12 hours from Florida to attend festivities.

From Barron's Jul. 3, 2026

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

One hundred years after that, Philadelphia’s high on the 1976 bicentennial Independence Day was right in the middle: 81 degrees, according to the NWS.

From The Wall Street Journal Jul. 2, 2026

Indeed, “Apartment House” got the lion’s share of bicentennial attention and ridicule.

From Los Angeles Times Jul. 2, 2026

Recently, Mom picked up a Jim Nabors album of patriotic songs in honor of the bicentennial.

From "Dreaming in Cuban" by Cristina García

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