semicentennial
- noun
- /ˌsɛmɪsɛnˈtɛnɪəl/
- US
- The university will host a gala in honor of its semicentennial this year.
Examples
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They unveiled a commemorative plaque to mark the company’s semicentennial milestone.
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The city’s semicentennial celebrations attracted visitors from across the country.
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The school celebrated its semicentennial last year.
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Are you planning for the semicentennial event?
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The town held a big parade to celebrate its semicentennial, marking 50 years of history.
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In 2025, the museum will have a special exhibition for its semicentennial anniversary.
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The semicentennial celebrations included fireworks, music, and a community feast.
Synonyms
The 50th anniversary of an event or its celebration
Surface Forms
Morphology
semicentennial = centennial (transparent) = semi + centennial
The meaning is directly built from 'semi-' meaning half and 'centennial' meaning a hundredth anniversary, yielding the fiftieth anniversary.
Etymology
Semicentennial is made of semi- 'half' and centennial '100th anniversary', so a semicentennial is the fifty-year celebration, half of a hundred years.