Word.ws English Dictionary

octennial

octennial adjective: occurring every eight years.

Adjective

octennial (not comparable)

  1. Occurring every eight years.
  2. Lasting or taking eight years.

Origin of octennial

From oct- + -ennial.

Words formed from octennial

Questions about octennial

What does octennial mean?
Octennial means occurring every eight years.
What part of speech is octennial?
Octennial is an adjective.

Words near octennial in the dictionary

  1. octene
  2. octenes
  3. octenidine
  4. octenidine dihydrochloride
  5. octennia
  6. octennial
  7. octennially
  8. octennium
  9. octenniums
  10. octenol
  11. octenyl

Source and license

Adapted from Wiktionary: octennial (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “octennial.” Word.ws, https://word.ws/octennial. Based on Wiktionary, CC BY-SA 4.0.