Catalog of terms and its definitions, variations, relationships of equivalence, hierarchical and associative, as well its usage. Singular, Plural, Typographic, Lexical, Syntatical, Synonymous, Quasi-Synonymous, Antonymous, Broad Term, Narrow Term, etc.
A treasury or storehouse; hence, a repository, especially of knowledge; -- often applied to a comprehensive work, like a dictionary or cyclopedia.
A work that lists terms, giving synonyms and/or antonyms for each. In database searching, it provides a standardized, controlled vocabulary for searching and organizing the database.