12 Letter Words Starting with TRI and Containing O

When you need a list of 12 letter words that start with TRI and contain O, 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 TRI or words with O to find some more options — if you're feeling a little flexible.

12 letter words

  1. tricephalous
  2. trichinosing
  3. trichlorfons
  4. trichlorphon
  5. trichocystic
  6. trichogynial
  7. trichotomise
  8. tridominiums
  9. triethiodide
  10. trigonometer
  11. trimetrogons
  12. trinacriform
  13. trinomialism
  14. trinomialist