You can search for a name from its meanings. The site has more than 10,000 names with meanings.
Getty Thesaurus of Geographic Names
Structured vocabulary of place names.
Library of Congress Classification Schedules
A list of LOC Classification schedules.
Library of Congress Thesauri
Links to multiple LOC thesauri, including GLIN, the Global Legal Information Network.
The Astronomy Thesaurus
Astronomical terms. Searches may be performed in English, French, German, Italian, and Spanish.
Thesaurus of Musical Instruments
Over a thousand instruments, with relational links based on the Library of Congress Subject Headings.