Alcohol and Other Drug Thesaurus - AOD
National Institutes of Health thesaurus. Provides resource for medical, social, and demographic terms related to alcohol and drug use.
Art and Architecture Thesaurus
Getty's terms, as used in several AAT indexes.
ASIS Thesaurus of Information Science
Hierarchical and alphabetical interface to library-related terms.
You can search for a name from its meanings. The site has more than 10,000 names with meanings.
CAS General Subject Vocabulary Helper
Extensive listings for chemistry. Produced by Chemical Abstracts Service, a division of the American Chemical Society.
Concept Space: the visual search tool for business
A British business education thesaurus with an intriguing navigational component from the London Business School.
European Union terminology. Available on most European Union languages.
Getty Thesaurus of Geographic Names
Structured vocabulary of place names.
Library of Congress Classification Schedules
A comprehensive list of LOC Classification schedules.
Library of Congress Thesauri
Links to multiple LOC thesauri, including GLIN, the Global Legal Information Network.
Definitions of common mathematical terms, along with broader, narrower, and related concepts.
National Aeronautics and Space Administration Thesaurus. Extensive coverage of scientific terms.
The Astronomy Thesaurus
Astronomical terms. Searches may be performed in English, French, German, Italian, and Spanish.