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National Institutes of Health thesaurus. Provides resource for medical, social, and demographic terms related to alcohol and drug use.
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You can search for a name from its meanings. The site has more than 10,000 names with meanings.
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Management education thesaurus from the London Business School organizes terms into a solar system of related ideas.
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Compiled by the Getty Research Institute, TGN is a structured vocabulary developed primarily for the field of art history, but can be used in any in many other applications. The thesaurus contains nearly 1 million place names representing approximately 900,000 places.
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European Union terminology. Available on most European Union languages.
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A list of LOC Classification schedules.
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Links to multiple LOC thesauri, including GLIN, the Global Legal Information Network.
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Definitions of common mathematical terms, along with broader, narrower, and related concepts.
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National Aeronautics and Space Administration Thesaurus. Includes coverage of scientific terms.
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A controlled vocabulary that can be used to improve access to cultural heritage information in the global networked environment. The AAT is a vocabulary of nearly 120,000 terms for describing objects, textural materials, images, architecture and material culture from antiquity to the present.
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Astronomical terms. Searches may be performed in English, French, German, Italian, and Spanish.
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Over a thousand instruments, with relational links based on the Library of Congress Subject Headings.
