353 THESAURUS

A thesaurus or synonym dictionary specifies for each dictionary entry one or more synonymic alternatives/categories/concept classes. Ambiguous entries are then replaced by many concepts and many different words (synonyms) may map onto the same 'concept' category. A thesaurus is an integral part of the total information retrieval system, and is used to gain multiple entry into the information by providing many more ways of formulating inquiries.

-> Ambiguity 5, 11; Language environment 201, 202; Lexicographer 219; Mapping 224, 227; Mapping analogy 234; Meaning 235, 236, 237; Semantics 318, 319; Translation 354, 367; Vocabulary 374; Work, introduction of 406;

& Art-community 38; Heuristic 146, 159; Information retrieval systems 181, 184, 185; Language 195, 200; Practical 272; Pragmatics 276; Translation 366; Work 399;

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