• IPA: /ˈɪndɛks/

index (plural indexes or indices)

  1. An alphabetical listing of items and their location.
    The index of a book lists words or expressions and the pages of the book upon which they are to be found.
  2. The index finger; the forefinger.
    Synonyms: Thesaurus:index finger
  3. A movable finger on a gauge, scale, etc.
  4. (typography) A symbol resembling a pointing hand, used to direct particular attention to a note or paragraph.
    Synonyms: manicule
  5. That which points out; that which shows, indicates, manifests, or discloses.
    • Tastes are the indexes of the different qualities of plants.
  6. A sign; an indication; a token.
    • His son's empty guffaws […] struck him with pain as the indices of a weak mind.
  7. (linguistics) A type of noun where the meaning of the form changes with respect to the context. E.g., 'Today's newspaper' is an indexical form since its referent will differ depending on the context. See also icon and symbol.
  8. (economics) A single number calculated from an array of prices or of quantities.
  9. (science) A number representing a property or ratio, a coefficient.
  10. (mathematics) A raised suffix indicating a power.
  11. (computing, especially, programming and databases) An integer or other key indicating the location of data e.g. within an array, vector, database table, associative array, or hash table.
  12. (computing, databases) A data structure that improves the performance of operations on a table.
  13. (obsolete) A prologue indicating what follows.
    • c. 1599-1602, William Shakespeare, Hamlet, III, 4
      Ay me, what act, that roars so loud and thunders in the index?
Translations Translations
  • Russian: показа́тель
Translations Translations
  • Russian: коэффицие́нт
  • Russian: показа́тель сте́пени
  • Russian: и́ндекс
  • German: Index
  • Russian: и́ндекс

index (indexes, present participle indexing; past and past participle indexed)

  1. (transitive) To arrange an index for something, especially a long text.
  2. To inventory, to take stock.
  3. (chiefly, economics) To normalise in order to account for inflation; to correct for inflation by linking to a price index in order to maintain real levels.
  4. (linguistics, transitive) To be indexical for (some situation or state of affairs); to indicate.
  5. (computing) To access a value in a data container by an index.
Proper noun
  1. An unincorporated community in Miller County, Arkansas.
  2. An unincorporated community in Morgan County, Kentucky.
  3. A ghost town in Cass County, Missouri.
  4. A small hamlet in Otsego County, New York.
  5. An unincorporated community in King George County, Virginia.
  6. A town in Snohomish County, Washington.
  7. An unincorporated community in Gilmer County, West Virginia.

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