Sesquicentennial
//ˌsɛskwɪsɛnˈtɛni.əl//
"Sesquicentennial" in a Sentence (2 examples)
New York City has kicked off a year-long celebration to mark the 150th anniversary of Central Park, which was created from barren swampland in the heart of the city. It is considered the ultimate everyman's playground. The city will honor the park's sesquicentennial with a host of concerts, fireworks and special events.
The city celebrated its sesquicentennial last year.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.