USAID thesaurus

  1. Oases
  2. Oats
  3. Observation
  4. Observation stations
  5. Obsolete technology
  6. Obstetric fistula
  7. Obstetrics
  8. Occupational diseases
  9. Occupational opportunities
  10. Occupational planning
  11. Occupational qualifications
  12. Occupational safety
  13. Occupational skill levels
  14. Occupations
  15. Ocean thermal energy
  16. Ocean tides
  17. Ocean waste disposal
  18. Oceania
  19. Oceanography
  20. Oceanography research
  21. Oceans and seas
  22. Odor control
  23. Off farm employment
  24. Offal
  25. Offenders
  26. Office buildings
  27. Office equipment
  28. Office management
  29. Official documents
  30. Official language
  31. Offshore drilling USE Oil drilling
  32. Oil crops
  33. Oil drilling
  34. Oil fields
  35. Oil palms
  36. Oil pipelines
  37. Oil pollution
  38. Oil prices
  39. Oil producing countries
  40. Oil wells
  41. Oilseeds USE Oil crops
  42. Old age benefits
  43. Oligopolies
  44. Olives
  45. Oman
  46. Omnivores
  47. On farm research
  48. On farm water management
  49. On the job training
  50. Onchocerciasis
  51. Onions
  52. Onlending
  53. Open admissions
  54. Open channel flow
  55. Operating costs
  56. Operations research
  57. Ophthalmologists
  58. Ophthalmology
  59. Optical properties
  60. Optics
  61. Optimization
  62. Oral communication skills
  63. Oral contraceptives
  64. Oral history
  65. Oral rehydration therapy
  66. Ores USE Metalliferous minerals
  67. Organ meats USE Offal
  68. Organic acids
  69. Organic chemicals
  70. Organic farming
  71. Organic nitrates
  72. Organic phosphates
  73. Organic salts
  74. Organic soils USE Peat
  75. Organic sulfates
  76. Organization theory
  77. Organizational capacity
  78. Organizational structure
  79. Organizations
  80. Oriental Republic of Uruguay USE Uruguay
  81. Orphanages
  82. Orphans
  83. Orphans and other vulnerable children USE Orphans and vulnerable children (OVC)
  84. Orphans and vulnerable children (OVC)
  85. Orphans and vulnerable youth (OVY) USE Orphans and vulnerable children (OVC)
  86. ORT USE Oral rehydration therapy
  87. Orthoptera
  88. Osteomyelitis
  89. Out of school youth
  90. Outdoor toilet facilities
  91. Outpatient care
  92. Ovens USE Cookstoves
  93. Ovens USE Kilns
  94. Overfishing
  95. Overhead
  96. Overpopulation
  97. Overproduction
  98. Oversight responsibility
  99. Overtime work
  100. Ownership
  101. Oxen
  102. Oxides (inorganic)
  103. Oxygen
  104. Oxygen consumption (biological)
  105. Oxytetracycline
  106. Oyster culture
  107. Oysters