Definition of octennial in English:

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Pronunciation: /ɒkˈtɛnɪəl/


1Recurring every eight years.
Example sentences
  • But this explanation appears to be inconsistent with the octennial period of the festival.
1.1Lasting for or relating to a period of eight years.
Example sentences
  • The Bill was, it is true, changed from a septennial to an octennial one.


Mid 17th century: from late Latin octennium 'period of eight years' + -al.

For editors and proofreaders

Line breaks: oc¦ten|nial

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