• The hundredth anniversary of a significant event; a centennial.


  • Relating to a hundredth anniversary; centennial.

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Example Sentences

“The whole family is looking forward to Aunt Marnie’s centenary celebration.”

“The historical committee is planning a memorial to mark the centenary of the town’s founding family settling here.”

“When the school celebrated its centenary, it had a festival to raise money for a new gymnasium.”

Word Origin

Latin, mid-15th century

Why this word?

“Centenary” can be used as both an adjective and a noun. It comes from the Latin words “centenarius” and “centum,” which mean “denoting a hundred” and “a hundred,” respectively. Places or events are not the only subjects of a hundred-year anniversary — people celebrating their 100th birthday are also observing a centenary. According to the Pew Research Center, it’s estimated that the number of people celebrating a centenary will more than quadruple over the next few decades. Around 101,000 Americans will turn 100 in 2024, and that number is estimated to be around 422,000 in 2054.

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