| 01. otontzi (7 Letters) | 02. otordu (6 Letters) | 03. otorduero (9 Letters) |
| 04. otorrinolaringologia (20 Letters) | 05. otorrinolaringologo (19 Letters) | 06. otoz (4 Letters) |
| 07. otoz otoan (10 Letters) | 08. otoz otoko (10 Letters) | 09. otsail (6 Letters) |
| 10. otsalar (7 Letters) | 11. otsalizar (9 Letters) | 12. otsanda (7 Letters) |
| 13. otsando (7 Letters) | 14. otsapago (8 Letters) | 15. otsar (5 Letters) |
| 16. otsatz (6 Letters) | 17. otsein (6 Letters) | 18. otseintza (9 Letters) |
| 19. otseme (6 Letters) | 20. otserri (7 Letters) | 21. otserroi (8 Letters) |
| 22. otso (4 Letters) | 23. otsobaba (8 Letters) | 24. otsoki (6 Letters) |
| 25. otsoko (6 Letters) | 26. otsokume (8 Letters) | 27. otsotu (6 Letters) |
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| 28. otsotzar (8 Letters) | 29. ottawar (7 Letters) | 30. otu (3 Letters) |
| 31. oturuntza (9 Letters) | 32. oturuntzatu (11 Letters) | 33. otxabatu (8 Letters) |
| 34. otxabu (6 Letters) | 35. otxar basati (12 Letters) | 36. otxenta (7 Letters) |
| 37. otzakaitz (9 Letters) | 38. otzal (5 Letters) | 39. otzan (5 Letters) |
| 40. otzandu (7 Letters) | 41. otzantasun (10 Letters) | 42. otzara (6 Letters) |
| 43. otzaragile (10 Letters) | 44. otzaragintza (12 Letters) | 45. otzarakada (10 Letters) |
| 46. otzaratxo (9 Letters) | 47. otzur (5 Letters) | 48. otzurrean (9 Letters) |
| 49. otzurrean hasi (14 Letters) | 50. ovni (4 Letters) | 51. oxala (5 Letters) |
| 52. oxalato (7 Letters) | 53. oxazido (7 Letters) | 54. oxidagaitz (10 Letters) |
| 55. oxidagaiztasun (14 Letters) | 56. oxidagarri (10 Letters) | 57. oxidagarritasun (15 Letters) |
| 58. oxidakuntza (11 Letters) | 59. oxidatu (7 Letters) | 60. oxidatzaile (11 Letters) |
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