Words Containing O and Ending in UM

Making a list of words with O that end in UM? Sounds fun. Also sounds pretty specific. A list like that could go a long way, we're sure. This complete word list is tailored to your search parameters, whether they are words with O or words that end in UM. Or both, obviously.

15 letter words

14 letter words

  1. conservatorium
  2. rhynchosporium
  3. sceuophylacium

13 letter words

  1. acaridomatium
  2. demonstrandum
  3. inclinatorium
  4. pycnoconidium
  5. scolopendrium
  6. succinctorium
  7. vivisectorium

12 letter words

  1. androclinium
  2. archesporium
  3. chlorophytum
  4. cladophyllum
  5. cladosporium
  6. etymologicum
  7. inhalatorium
  8. moeritherium
  9. mycodomatium
  10. nonaluminium
  11. osteospermum

11 letter words

  1. bryophyllum
  2. contagiosum
  3. dinotherium

10 letter words

  1. cavernosum
  2. chromidium
  3. embothrium
  4. eriophorum

9 letter words

  1. anoestrum
  2. coenobium
  3. consultum
  4. cormidium

8 letter words

  1. asinorum
  2. corallum
  3. coremium

7 letter words

  1. corneum
  2. ignotum
  3. ludorum
  4. orarium
  5. outswum

6 letter words

  1. kookum
  2. outsum

5 letter words

4 letter words

  1. roum