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13-letter words starting with octo

  • octocentenary — pertaining to 800 or a period of 800 years; marking the completion of 800 years.
  • octodecillion — a cardinal number represented in the U.S. by 1 followed by 57 zeros, and in Great Britain by 1 followed by 108 zeros.
  • octogenarians — Plural form of octogenarian.
  • octosyllables — Plural form of octosyllable.

On this page, we collect all 13-letter words starting with OCTO. It’s easy to find right word with a certain length. It is the easiest way to find 13-letter word that beginning with OCTO to use in Scrabble or Crossword puzzles.

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