Definition

1. Proper noun:
   • A library classification system: The Dewey Decimal Classification is a proprietary library classification system that organizes non-fiction publications into subject categories. Each subject is assigned a unique numerical code, typically starting with a three-digit number, with further specification provided by digits after a decimal point. Items are physically arranged on shelves in numerical order.

Usage

• The Dewey Decimal Classification is the most widely used library classification system in the world.
• To find a book on physics, you would look for a call number beginning with 530 in the Dewey Decimal Classification.
• Many public and school libraries use the Dewey Decimal Classification to organize their collections.

Advanced Usage

• "To be classified according to Dewey": To be assigned a call number using the Dewey Decimal Classification system.
  • Most of the books in this library are classified according to Dewey.
• "DDC number": A common abbreviation for a Dewey Decimal Classification call number.
  • You can search for the book's DDC number in the online catalog.

Variants and Related Words

• Dewey Decimal System (n): A common alternative name for the Dewey Decimal Classification.
  • The Dewey Decimal System was invented by Melvil Dewey.
• DDC (n): The standard initialism for Dewey Decimal Classification.
  • The library's catalog shows the DDC for each item.
• Call number (n): The unique code, often based on a classification system like DDC, used to identify and locate a specific item in a library.
  • The call number, derived from the Dewey Decimal Classification, is printed on the book's spine.

Synonyms

• Library classification system: A general term for any system used to categorize library materials.
• Decimal classification: A broader term for classification systems using a decimal notation.

Related Phrases

• "To shelve by Dewey number": To arrange library materials in physical order based on their Dewey Decimal Classification numbers.
  • Volunteers were trained to shelve books by Dewey number.

Noun

1. a system used by libraries to classify nonfictional publications into subject categories; the subject is indicated by a three-digit numeral and further specification is given by numerals following a decimal point; publications are shelved by number