U.S. Agency for International Development Thesaurus

"Purpose: The USAID Thesaurus is a tool for the indexing and retrieval of technical and project document information processed by the Development Experience Clearinghouse (DEC) of the U.S. Agency for International Development. [...]"

"Subject Coverage: The USAID Thesaurus is multidisciplinary in scope. Subjects like agriculture, communications, culture, demography, economics, education, energy, government and law, health, housing, industry, labor, management, natural resources, science and technology, sociology and psychology, trade, and transportation are all covered. [...]."