12 Letter Words Starting with O and Containing IES

When you need a list of 12 letter words that start with O and contain IES, who you gonna call? WordList Finder! Word lists exactly like these 12 letter words are only a few quick finger taps away on our site. Dive into words that start with O or words with IES to find some more options — if you're feeling a little flexible.

12 letter words

  1. observancies
  2. oceanologies
  4. octaploidies
  5. octogenaries
  6. odontogenies
  7. odontologies
  8. odorimetries
  10. oleographies
  11. oligophagies
  13. omniparities
  15. ophiolatries
  16. opotherapies
  17. oppugnancies
  18. optimalities
  19. oreographies
  20. organicities
  21. organogenies
  22. organologies
  23. orismologies
  24. orotundities
  25. orthodromies
  26. orthopaedies
  27. orthopraxies
  28. orthotropies
  29. oryctologies
  33. osteopathies
  36. overcanopies
  37. overfussiest
  38. overhappiest
  39. overmerriest
  41. oxidimetries

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