AskDefine | Define indices

Dictionary Definition



1 a numerical scale used to compare variables with one another or with some reference number
2 a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time [syn: index number, indicant, indicator]
3 a mathematical notation indicating the number of times a quantity is multiplied by itself [syn: exponent, power]
4 an alphabetical listing of names and topics along with page numbers where they are discussed
5 the finger next to the thumb [syn: index finger, forefinger]


1 list in an index
2 provide with an index; "index the book"
3 adjust through indexation; "The government indexes wages and prices" [also: indices (pl)]indices See index

User Contributed Dictionary



  1. Plural of index|nodot=1 when used in the sense of a key to locate an element in a list, vector or matrix in computing or mathematics.
    The subscript numbers after each element are the indices of that element.
    A common convention in computing is to have indices beginning at zero, whereas in mathematics indices usually begin at one.
Note: when referring to a directory listing, the plural indexes should be used.

Extensive Definition

An index is a system used to make finding information easier.
Index may also refer to:
  • Index (publishing), a detailed list, usually arranged alphabetically, of the specific information in a publication
  • Index cards in a rolodex or old library 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, New York, a hamlet in the County and Town of Otsego, New York, United States
  • Index (typography), a largely obsolete punctuation mark
  • Indexing (motion), a kind of motion in many areas of mechanical engineering and machining
In publications:
In computers and information retrieval:
  • The Index, an item on the Halo (megastructure) in the Halo series of video games
  • The Index (Dubai), 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
  • 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
indices in Czech: Index
indices in German: Index
indices in Esperanto: Indekso
indices in French: Index
indices in Ido: Indico
indices in Italian: Index
indices in Hebrew: אינדקס
indices in Hungarian: Index
indices in Dutch: Index
indices in Japanese: インデックス
indices in Russian: Индекс
indices in Ukrainian: Індекс
indices in Albanian: Treguesi
indices in Simple English: Index
indices in Swedish: Index
indices in Finnish: Indeksi
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