Decennial definition

dĭ-sĕnē-əl
Occurring every ten years.
adjective
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Relating to or lasting for ten years.
adjective
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Happening every ten years.
adjective
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Lasting ten years.
adjective
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A tenth anniversary.
noun
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A tenth anniversary or its commemoration.
noun
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The tenth anniversary of an event or happening.
noun
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Occurring every ten years.
adjective
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Other Word Forms

Noun

Singular:
decennial
Plural:
decennials

Origin of decennial

  • From Latin decennium a period of ten years decennium

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin decennialis, French decem ten + ennius year- -ly

    From Wiktionary