13 Letter Words Starting with O, Containing R and Ending in S

You're someone who knows what they want, huh? This list of 13 letter words that start with O, contain R and end in S sure makes that pretty clear. Our dictionary has found 151 words that meet your criteria. You can sort the words alphabetically and click on each word to learn the definition.

13 letter words

  1. obliterations
  2. obscurenesses
  3. obstreperates
  4. octingenaries
  5. odontophorans
  6. odontornithes
  7. odorousnesses
  8. oleomargarins
  9. olericultures
  10. oligotrophies
  11. ommatophorous
  12. omniformities
  13. omnipresences
  14. oneiroscopies
  15. onerousnesses
  16. operabilities
  17. operationisms
  18. operationists
  19. operativities
  20. operosenesses
  21. orchestraters
  22. orchidologies
  23. orchidomanias
  24. orderlinesses
  25. orientalities
  26. orienteerings
  27. ornithogalums
  28. ornithologies
  29. ornithomorphs
  30. orthognathies
  31. orthopterists
  32. orthopteroids
  33. orthostichies
  34. orthostichous
  35. orthotropisms
  36. osteofibroses
  37. osteofibrosis
  38. osteospermums
  39. ostreophagies
  40. ostreophagous
  41. outreproduces
  42. overabstracts
  43. overalertness
  44. overbuildings
  45. overchargings
  46. overclockings
  47. overconscious
  48. overcrammings
  49. overcrowdings
  50. overdecorates
  51. overdiagnoses
  52. overdiscounts
  53. overdocuments
  54. overdramatics
  55. overengineers
  56. overevaluates
  57. overexercises
  58. overfulnesses
  59. overhastiness
  60. overidealises
  61. overimpresses
  62. overingenious
  63. overlengthens
  64. overmodesties
  65. overnourishes
  66. overoptimisms
  67. overoptimists
  68. overorganises
  69. overorganizes
  70. overornaments
  71. overplannings
  72. overplottings
  73. overprocesses
  74. overreachings
  75. overreliances
  76. oversamplings
  77. oversaturates
  78. overschedules
  79. overstaffings
  80. overtaxations
  81. overwhelmings
  82. overwithholds
  83. oxyrhynchuses