Look up Index, index, indexes, indice, or indices in Wiktionary, the free dictionary.

Index (pl.: indexes or indices) may refer to:

• Index (A Certain Magical Index), the titular character of the light novel series A Certain Magical Index
• The Index, an item on the Halo Array in the Halo video game series

• Index Magazine, a publication for art and culture
• Index.hr, a Croatian online newspaper
• index.hu, a Hungarian-language news and community portal
• The Index (Kalamazoo College), a student newspaper
• The Index, an 1860s European propaganda journal created by Henry Hotze to support the Confederate States of America
• Truman State University Index, a student newspaper

• The Index (band)
• Indexed, a Web cartoon by Jessica Hagy
• Index, album by Ana Mena

• Index (retailer), a former UK catalogue retailer
• INDEX, a market research fair in Lucknow, India
• Index Corporation, a Japanese video game developer

• Index fund, a collective investment scheme
• Stock market index, a statistical average of prices of selected securities

• Index, Arkansas, an unincorporated community
• Index, Kentucky, an unincorporated community
• Index, Missouri, a ghost town
• Index, New York, a hamlet in Hartwick and Otsego, New York
• Index, Virginia, an unincorporated community
• Index, Washington, a town
• Index, West Virginia, an unincorporated community

• Bibliographic index, a regularly updated publication that lists articles, books, or other information items
• Citation index
• The Index, colloquial name for Germany's List of Media Harmful to Young People, published by the Bundesprüfstelle für jugendgefährdende Medien
• Index card, used for recording and storing small amounts of data
• Index Librorum Prohibitorum, a list of publications which the Catholic Church censored
• Index on Censorship, a publishing organization that campaigns for freedom of expression, or its magazine of the same name
• Index (publishing), an organized list of information in a publication
• Index (typography), a hand- or fist-shaped punctuation mark
• Subject indexing, describing the content of a document by keywords
• Thumb index, a round cut-out in the pages of a publication
• Web indexing, Internet indexing

• Index, a key in an associative array
• Index (typography), a character in Unicode, its code is 132
• Index, the dataset maintained by search engine indexing
• Array index, an integer pointer into an array data structure
• BitTorrent index, a list of .torrent files available for searches
• Database index, a data structure that improves the speed of data retrieval
• Index mapping of raw data for an array
• Index register, a processor register used for modifying operand addresses during the run of a program
• Indexed color, in computer imagery
• Indexed Sequential Access Method (ISAM), used for indexing data for fast retrieval
• Lookup table, a data structure used to store precomputed information
• Site map, or site index, a list of pages of a web site accessible to crawlers or users
• Web indexing, Internet indexing
• Web server directory index, a default or index web page in a directory on a web server, such as index.html

• Index (economics), a single number calculated from an array of prices and quantities
  • Price index, a typical price for some good or service

• Index, a number or other symbol that specifies an element of an indexed family or set
• Index, an element of an index set
• Index, the label of a summand in Σ-notation of a summation

• Index of a subgroup, the number of a subgroup's left cosets
• Index, the degree of an nth root
• Index of a linear map, the dimension of the map's kernel minus the dimension of its cokernel
• Index of a matrix
• Index of a real quadratic form

• Index, the winding number of an oriented closed curve on a surface relative to a point on that surface
• Diversity index, a measure of distribution or variety in fields such as ecology or information science
• Index of a vector field, an integer that helps to describe the behaviour of a vector field around an isolated zero

• Index, or the discrete logarithm of a number

• Index (statistics), a type of aggregate measure
  • Scale (social sciences), a method of reporting data in social sciences, sometimes called an index

• Dental indices, standardized scoring systems for tooth problems
• Indexicality, in linguistics, the phenomenon of a sign pointing to some object in the context in which it occurs
• Indexing (motion), in mechanical engineering and machining, movement to a precisely known location
• Refractive index, a measurement of how light propagates through a material
• Valve Index, a virtual reality headset

• INDEX, earlier name for the Reimei satellite
• Index:, a Danish nonprofit organization which promotes Design for Life
• The Index (Dubai), a skyscraper
• Index (crater), a Moon crater

• Indexer (disambiguation)
• All pages with titles beginning with Index
• All pages with titles containing Index

This disambiguation page lists articles associated with the title Index.
If an internal link led you here, you may wish to change the link to point directly to the intended article.