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Index facts for kids

Kids Encyclopedia Facts

An index is a system used to make finding information easier.

Index could also mean:

  • Index (publishing), a detailed list, usually arranged alphabetically, of the specific information in a publication
  • Index cards in a rolodex or old card catalog, early and mid 20th century technologies for maintaining such lists
  • Index (mathematics), for various meanings of the word in mathematics
  • Index (economics), a single number calculated from an array of prices and quantities.
  • Index, Washington, a town in Snohomish County, Washington, United States.
  • Index (typography), a largely obsolete punctuation mark

In publications:

  • Index Librorum Prohibitorum, a list of publications which the Catholic Church censored
  • Germany's List of Media Harmful to Young People, colloquially known as The Index, published by the Bundesprüfstelle für jugendgefährdende Medien
  • Index Magazine, was a prominent New York City based publication for art and culture.
  • Truman State University Index, the weekly newspaper distributed at Truman State University and throughout the Kirksville, Missouri community.
  • The Index, the student newspaper of Kalamazoo College, published since 1877.
  • The Index (journal), a European propaganda journal created by Henry Hotze to support the Confederate States of America during the American Civil War.

In computers and information retrieval:

  • Index (database), a feature in a computerized database which allows quick access to the rows in a table
  • Index (information technology), in computer science, either an integer which identifies an array element, or a data structure which enables fast lookup
  • Index (search engine), for supporting information retrieval in search engines
  • Webserver directory index, a default or index web page in a directory on a web server, such as index.html
  • Subject indexing, describing the content of a document by keywords


  • The Index, an item on the Halo (megastructure) in the Halo series of video games.
  • The Index (skyscraper), a tower under construction in Dubai.
  • Index (retailer), a defunct UK catalogue retailer formerly owned by the Littlewoods group and known as Littlewoods Index
  • Index finger, The second digit of a human hand is also referred to as the index finger, pointer finger, forefinger, digitus secundus, or digitus II.
  • Index fund, a collective investment scheme
  • Indexicality, in linguistics, the variation of meaning of an utterance according to certain features of the context in which it is uttered

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