1. Edible tuber of any of several yams.
4. The 12th letter of the Hebrew alphabet.
10. The compass point that is one point east of due south.
13. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
14. Planetarium consisting of an apparatus that illustrates the relative positions and motions of bodies in the solar system by rotation and revolution of balls moved by wheelwork.
15. A loud utterance.
16. The sign language used in the United States.
17. (British) A member of the military police.
18. A river in north central Switzerland that runs northeast into the Rhine.
19. Iraqi leader who waged war against Iran and who invaded Kuwait (born in 1937).
21. A Bantu language spoken by the Chaga people in northern Tanzania.
23. Of or relating to or characteristic of Afghanistan or its people.
24. Social status or position conferred by a system based on class.
28. A slender double-reed instrument.
32. Shading consisting of multiple crossing lines.
35. A constellation in the southern hemisphere near Telescopium and Norma.
36. (astronomy) A measure of time defined by Earth's orbital motion.
37. A doctor's degree in dental surgery.
38. A tricycle (usually propelled by pedalling).
41. Lower in esteem.
43. A metric unit of volume or capacity equal to 10 liters.
46. Relative darkness caused by light rays being intercepted by an opaque body.
49. An often persistent bodily disorder or disease.
53. According with custom or propriety.
55. A logarithmic unit of sound intensity.
56. A woman hired to suckle a child of someone else.
57. In favor of (an action or proposal etc.).
58. Medium-sized tree-dwelling monkey of the Amazon basin.
61. An agency of the United Nations affiliated with the World Bank.
62. The compass point that is one point north of due east.
63. Too numerous to be counted.
64. (used especially of commodities) In the natural unprocessed condition.

1. Not only so, but.
2. (Akkadian) Father of the gods and consort of Tiamat.
3. A master's degree in library science.
4. Small brightly colored Australasian parrots having a brush-tipped tongue for feeding on nectar and soft fruits.
5. A particular environment or walk of life.
6. A machine-readable version of a standard dictionary.
7. An international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members.
8. A unit of apothecary weight equal to an eighth of an ounce or to 60 grains.
9. Any of the threadlike filaments forming the mycelium of a fungus.
10. A narcotic that is considered a hard drug.
11. (informal) Exceptionally good.
12. Long-bodied long-tailed tropical American wildcat.
20. A hormone produced by the anterior pituitary gland that stimulates the adrenal cortex.
22. Small buffalo of the Celebes having small straight horns.
25. A river in north central Switzerland that runs northeast into the Rhine.
26. Any of a number of fishes of the family Carangidae.
27. A bivalent and trivalent metallic element of the rare earth group.
29. The capital and chief port of Qatar.
30. The probability of a specified outcome.
31. Freedom from difficulty or hardship or effort.
33. The basic unit of money in Iran.
34. French romantic writer (1766-1817).
39. Severe diabetes mellitus with an early onset.
40. A constellation in the southern hemisphere near Columba and Eridanus.
42. Area around the altar of a church for the clergy and choir.
44. A family of Sino-Tibetan languages spoken in southeastern Asia.
45. A small faint zodiacal constellation in the southern hemisphere.
47. A plant lacking a permanent woody stem.
48. (in Gnosticism) A divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe.
50. An independent ruler or chieftain (especially in Africa or Arabia).
51. A quantity of no importance.
52. The process whereby heat changes something from a solid to a liquid.
54. A branch of the Tai languages.
59. A colorless element that is one of the six inert gasses.
60. A state in the Rocky Mountains.