Vicennial meaning

vī-sĕn'ē-əl
Happening once every 20 years.
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Existing or lasting for 20 years.
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Happening every twenty years.
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Lasting twenty years.
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Occurring every twenty years.
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Lasting twenty years.
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Origin of vicennial

  • From Late Latin vīcennium period of twenty years Latin vīciēns twenty times (from vīgintī twenty vicenary) Latin annus year at- in Indo-European roots
    From American Heritage Dictionary of the English Language, 5th Edition