Definition of Dewey Decimal Classification in English:

Dewey Decimal Classification

Line breaks: Dewey Deci|mal Clas¦si¦fi|ca¦tion
Pronunciation: /djuːi ˈdɛsɪml klasɪfɪkeɪʃn
(also Dewey system)


  • An internationally applied decimal system of library classification which uses a three-figure code from 000 to 999 to represent the major branches of knowledge, and allows finer classification to be made by the addition of further figures after a decimal point.
    More example sentences
    • Based on such an analysis, Orom has been able to discern a dominant view in, for example, the Library of Congress and Dewey decimal classifications.
    • It's like having a librarian who doesn't read books or understand the Dewey system categorising your reading and telling you what you can read based on their worthless biases.
    • This is a series of quizzes about how to use the Dewey system developed by the University of Texas at Austin.


late 19th century: named after Melvil Dewey (1851–1931), American librarian.

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