"UNTERM is a multilingual terminology database maintained jointly by the main duty stations and regional commissions of the United Nations system. (...) UNTERM provides terminology and nomenclature in subjects relevant to the work of the United Nations. Information is provided in the six UN official languages, and there are also entries in German and Portuguese. (...) This database is a linguistic tool created primarily to facilitate the work of United Nations staff members and other people around the world who participate or are interested in the Organization's activities.

United Nations Bibliographical Information System Thesaurus

"The multilingual UNBIS Thesaurus contains the terminology used in subject analysis of documents and other materials relevant to United Nations programmes and activities. It is multidisciplinary in scope, reflecting the Organization’s wide-ranging concerns. The terms included are meant to reflect accurately, clearly, concisely and with a sufficient degree of specificity, matters of importance and interest to the United Nations.