| 01. oncogen (7 Letters) | 02. ontologismo (11 Letters) | 03. organicismo (11 Letters) |
| 04. onoquiles (9 Letters) | 05. ocairi, ocaira (14 Letters) | 06. ovogonia (8 Letters) |
| 07. orio (4 Letters) | 08. oremus (6 Letters) | 09. oréade (6 Letters) |
| 10. onomasiológico (14 Letters) | 11. onfalitis (9 Letters) | 12. occitano (8 Letters) |
| 13. origen dela palabra huanengo (28 Letters) | 14. olisco (6 Letters) | 15. ombu (4 Letters) |
| 16. omeya (5 Letters) | 17. omer (4 Letters) | 18. omental (7 Letters) |
| 19. oligocracia (11 Letters) | 20. obsidional (10 Letters) | 21. onfalitis (9 Letters) |
| 22. oralidad (8 Letters) | 23. oraciones con la palabra secretamente (37 Letters) | 24. oralidad (8 Letters) |
| 25. obsolescencia programada (24 Letters) | 26. otro siegnificado del orden (27 Letters) | 27. ordovícico (10 Letters) |
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| 28. otoe (4 Letters) | 29. otoe (4 Letters) | 30. ovocitos (8 Letters) |
| 31. odalisca (8 Letters) | 32. orma (4 Letters) | 33. oroya (5 Letters) |
| 34. obusera (7 Letters) | 35. olo- (4 Letters) | 36. omer (4 Letters) |
| 37. osteopenia (10 Letters) | 38. organoclorado (13 Letters) | 39. onoto (5 Letters) |
| 40. ortesis (7 Letters) | 41. obstancia (9 Letters) | 42. octópodo (8 Letters) |
| 43. ommiada (7 Letters) | 44. olido (5 Letters) | 45. oviducto (8 Letters) |
| 46. ovoviviparos (12 Letters) | 47. ovido (5 Letters) | 48. omento (6 Letters) |
| 49. ojetera (7 Letters) | 50. oblitero (8 Letters) | 51. odre invertido (14 Letters) |
| 52. orejones (8 Letters) | 53. opita (5 Letters) | 54. onicofago (9 Letters) |
| 55. obispos (7 Letters) | 56. orioaren errota (15 Letters) | 57. origen de vitacura (18 Letters) |
| 58. opulenta (8 Letters) | 59. onagro (6 Letters) | 60. oclosa (6 Letters) |
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