1. The 21st letter of the Greek alphabet.
4. A flat cake of thin batter fried on both sides on a griddle.
12. Having leadership guidance.
15. A river in north central Switzerland that runs northeast into the Rhine.
16. (law) A formal objection to an opponent's pleadings.
17. The waging of armed conflict against an enemy.
18. Largest crested screamer.
20. (Scottish) Bluish-black or gray-blue.
22. A former copper coin of Pakistan.
24. Talking idly or incoherently.
28. A flat wing-shaped process or winglike part of an organism.
29. (Old Testament) The eldest son of Isaac who would have inherited the Covenant that God made with Abraham and that Abraham passed on to Isaac.
32. A light strong brittle gray toxic bivalent metallic element.
33. Any of various hard resins from trees of the family Dipterocarpaceae and of the genus Agathis.
37. Lean end of the neck.
40. A unit of current equal to 10 amperes.
42. A crude uncouth ill-bred person lacking culture or refinement.
43. Animal food for browsing or grazing.
45. A fractional monetary unit of Japan and Indonesia and Cambodia.
46. Someone who engages in arbitrage (who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential).
47. Rounded like an egg.
49. A white soft metallic element that tarnishes readily.
51. Edge of a way or road or path.
54. A sliver-white metallic element of the platinum group that resembles platinum.
55. A small island.
58. A colorless and odorless inert gas.
60. United States composer noted for his innovative use of polytonality (1874-1954).
62. A city in northern India.
64. An overwhelming feeling of wonder or admiration.
69. A rudaceous rock consisting of sharp fragments embedded in clay or sand.
72. The cry made by sheep.
73. (Norse mythology) A dwarf who possessed a treasure that was stolen by Loki.
75. The Hebrew patriarch who saved himself and his family and the animals by building an ark in which they survived 40 days and 40 nights of rain.
76. A doctor's degree in education.
77. Relating to or being a word processing system that prints the text exactly as it appears on the computer screen.
78. A river in north central Switzerland that runs northeast into the Rhine.

1. Large burrowing rodent of South and Central America.
2. German chemist who was co-discoverer with Lise Meitner of nuclear fission (1879-1968).
3. A theocratic republic in the Middle East in western Asia.
4. A federal agency established to regulate the release of new foods and health-related products.
5. A chronic inflammatory collagen disease affecting connective tissue (skin or joints).
6. A platform raised above the surrounding level to give prominence to the person on it.
7. 100 puls equal 1 afghani.
8. The edible flesh of any of various crabs.
9. A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography).
10. Unknown god.
11. Angular distance above the horizon (especially of a celestial object).
12. 100 lwei equal 1 kwanza.
13. Earn on some commercial or business transaction.
14. A small amount of residue.
19. A large spotted feline of tropical America similar to the leopard.
21. A device (used by carpenters) that holds things firmly together v 1.
23. A fluorocarbon with chlorine.
25. A member of an agricultural people of southern India.
26. Expletives used informally as intensifiers.
27. The blood group whose red cells carry both the A and B antigens.
30. Flesh of young Atlantic cod weighing up to 2 pounds.
31. A popular island resort in the Netherlands Antilles.
34. Genus of tropical Asiatic trees having large solitary flowers.
35. A genus of tropical Asian and Malaysian palm trees.
36. Someone who pays rent to use land or a building or a car that is owned by someone else.
38. A mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity.
39. English economist noted for his studies of international trade and finance (born in 1907).
41. (Norse mythology) God of light and peace and noted for his beauty and sweet nature.
44. Fermented alcoholic beverage similar to but heavier than beer.
48. The quality of evil by virtue of villainous behavior.
50. The animal order including amoebas.
52. English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984).
53. (trademark) An alloy of iron and nickel having a low coefficient of thermal expansion.
56. A Russian river.
57. Rig used in drilling for oil or gas.
59. (Greek mythology) One of the mountain nymphs.
61. A constitutional monarchy on the western part of the islands of Samoa in the South Pacific.
63. One-hundredth of a right angle.
65. A large number or amount.
66. Characterized by lightness and insubstantiality.
67. A flat-bottomed volcanic crater that was formed by an explosion.
68. A dull persistent (usually moderately intense) pain.
70. The sound made by corvine birds.
71. Informal terms for the mouth.
74. Denoting a quantity consisting of six items or units.