EBSCO offers databases covering virtually every area of interest and study. In order to enable the most powerful searching of these databases, EBSCO has created a comprehensive thesaurus of terms, which are used to thoroughly tag every record in every database with appropriate subject headings.

In support of the initial development and ongoing maintenance of this controlled vocabulary, EBSCO has contracted with subject experts and lexicographers to assemble, cross-reference and refine this enormous collection of terms.