DO we say "ten years once", for example? What's the correct form?

  • 1
    Do you mean once in every ten year period, or precisely once every ten years on this date?
    – Davo
    May 25, 2017 at 14:41
  • 1
    Takes place every ten years. May 25, 2017 at 14:49

1 Answer 1


You can use decennially - e.g. Our graduating class meets decennially


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