| ACROSS |
| 1. | Title for a knight |
| 4. | It is |
| 7. | “Change” in Tahitian |
| 11. | Complementary Metal Oxide Semiconductor (abbr.) |
| 13. | Radio Amateur Educational Society (abbr.) |
| 15. | Western Russian city on the Oka River south of Moscow |
| 16. | Institute of Electrical and Electronics Engineers (abbr.) |
| 17. | Nanny |
| 18. | Lacquered or enameled metalware |
| 19. | Conclude |
| 22. | 17th letter of the Greek alphabet |
| 24. | Master of Engineering Administration (abbr.) |
| 25. | Basketball assoc. |
| 28. | The grampus (Milton) |
| 30. | Ocean |
| 32. | Thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord |
| 33. | Research Institute of America (abbr.) |
| 34. | Below a satisfactory level |
| 35. | Distress signal |
| 36. | Mass |
| 39. | Teat (slang) |
| 42. | Auto club (abbr.) |
| 43. | Composition which requires nine musicians for a performance |
| 44. | A female animal or person |
| 46. | Nervous spasm |
| 48. | Indian titles of respect |
| 49. | Flaplike covering |
| 50. | Dimethylformamide (abbr.) |
| 52. | A language that is deliberately created for a specific purpose |
| 55. | Compass dir. |
| 56. | Pacific Standard Time (abbr.) |
| 57. | A young woodchuck |
| 58. | Nine, plus one |
| 59. | Bear (Spanish) |
| 61. | Playfully artful |
| 64. | Boat paddle |
| 66. | A group of pheasants |
| 68. | Immeasurably long periods of time |
| 71. | Son of Isaac |
| 75. | A disparaging term for an Italian, Spaniard, or Portuguese |
| 76. | Makes supply last |
| 77. | Snakelike fish |
| 78. | Presage |
| 79. | Supplement with great effort |
| 80. | The 19th letter of the Greek alphabet |
|
| DOWN |
| 1. | _-fi |
| 2. | Institute for Media and Entertainment (abbr.) |
| 3. | A female deer |
| 4. | Retirement account (abbr.) |
| 5. | Scottish cap |
| 6. | Dry up |
| 7. | Small child |
| 8. | Odor |
| 9. | Westward-flowing river in northern Congo |
| 10. | The third and lowest division of the small intestine |
| 12. | Perceive with the eye |
| 14. | Quiet! |
| 20. | Not either |
| 21. | A female yak |
| 23. | Open Software Foundation (abbr.) |
| 25. | National Aeronautics and Space Administration (abbr.) |
| 26. | A group of hippopotami |
| 27. | Slender Brazilian palm |
| 29. | Bodily heat indicating an inflammation |
| 31. | Newt |
| 34. | Elect |
| 37. | Single; one (prefix) |
| 38. | Of or pertaining to a meson |
| 40. | Small island |
| 41. | One or ones belonging to thee |
| 43. | National Science Foundation (abbr.) |
| 45. | Place of complete bliss and delight and peace |
| 47. | Music discs |
| 51. | Mountains (abbr.) |
| 53. | Superhero pair |
| 54. | Chief or king in Benin or Nigeria |
| 56. | Plash |
| 59. | Southwest Nigerian state |
| 60. | Thailand, formerly |
| 62. | Area sheltered from the wind |
| 63. | A group of oxes |
| 65. | To separate or throw off |
| 67. | Period of immesurable duration |
| 69. | Italian singer-songwriter Filippo Neviani |
| 70. | Compass dir. |
| 72. | Arrange properly for use |
| 73. | Wing |
| 74. | Volcano in Japan |
