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There are 3 eighteen-letter words containing TENNIA

quadranscentennialsemiquincentennialsesquicentennially

5 definitions found

  • quadranscentennial — n. The twenty-fifth anniversary of an event or happening. — adj. Occurring every twenty-five years. — adj. Of or related to a twenty-five-year period.
  • semiquincentennial — n. A 250th anniversary.
  • sesquicentennially — adv. (Rare) Celebrated after 150 years.
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