What does index mean?

Definitions for index
ˈɪn dɛks; -dəˌsizin·dex

This dictionary definitions page includes all the possible meanings, example usage and translations of the word index.

Princeton's WordNet

  1. indexnoun

    a numerical scale used to compare variables with one another or with some reference number

  2. index, index number, indicant, indicatornoun

    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

  3. exponent, power, indexnoun

    a mathematical notation indicating the number of times a quantity is multiplied by itself

  4. indexnoun

    an alphabetical listing of names and topics along with page numbers where they are discussed

  5. index, index finger, forefingerverb

    the finger next to the thumb

  6. indexverb

    list in an index

  7. indexverb

    provide with an index

    "index the book"

  8. indexverb

    adjust through indexation

    "The government indexes wages and prices"


  1. Indexnoun

    A number providing a measure of some quantity derived by a formula, usually a form of averaging, from multiple quantities; -- used mostly in economics; as, the index of leading indicators; the index of industrial production; the consumer price index. See, for example, the consumer price index.

  2. Indexnoun

    (computers) A file containing a table with the addresses of data items, arranged for rapid and convenient search for the addresses.

  3. Indexnoun

    (computers) A number which serves as a label for a data item and also represents the address of a data item within a table or array.

  4. Indexnoun

    (R. C. Ch.), The Index prohibitorius, a catalogue of books which are forbidden by the church to be read; also called Index of forbidden books and Index Librorum Prohibitorum.

  5. Indexnoun

    That which points out; that which shows, indicates, manifests, or discloses; as, the increasing unemployment rate is an index of how much the economy has slowed.

  6. Indexnoun

    A table for facilitating reference to topics, names, and the like, in a book, usually giving the page on which a particular word or topic may be found; -- usually alphabetical in arrangement, and printed at the end of the volume. Typically found only in non-fiction books.

  7. Indexverb

    (Economics) To adjust (wages, prices, taxes, etc.) automatically so as to compensate for changes in prices, usually as measured by the consumer price index or other economic measure. Its purpose is usually to copensate for inflation.

  8. Indexverb

    To insert (a word, name, file folder, etc.) into an index or into an indexed arrangement; as, to index a contract under its date of signing.


  1. indexnoun

    An alphabetical listing of items and their location; for example, the index of a book lists words or expressions and the pages of the book upon which they are to be found.

  2. indexnoun

    The index finger, the forefinger, or other pointer.

  3. indexnoun

    A sign; an indication; a token.

    His son's empty guffaws ... struck him with pain as the indices of a weak mind.

  4. indexnoun

    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.

  5. indexnoun

    A single number calculated from an array of prices or of quantities.

  6. indexnoun

    A number representing a property or ratio, a coefficient.

  7. indexnoun

    A raised suffix indicating a power.

  8. indexnoun

    An integer or other key indicating the location of data e.g. within a vector, database table, associative array, or hash table.

  9. indexnoun

    A data structure that improves the performance of operations on a table.

  10. indexverb

    To arrange an index for something, especially a long text.

  11. indexverb

    To inventory, to take stock.

  12. Etymology: From index, from indico; see indicate.

Samuel Johnson's Dictionary

  1. Indexnoun

    Etymology: Latin.

    Tastes are the indexes of the different qualities of plants, as well as of all sorts of aliment. John Arbuthnot, on Aliments.

    That which was once the index to point out all virtues, does now mark out that part of the world where least of them resides. Decay of Piety.

    They have no more inward self-consciousness of what they do or suffer, than the index of a watch, of the hour it points to. Richard Bentley, Sermons.

    In such indexes, although small
    To their subsequent volumes, there is seen
    The baby figure of the giant mass
    Of things to come, at large. William Shakespeare.

    If a book has no index, or good table of contents, 'tis very useful to make one as you are reading it; and in your index to take notice only of parts new to you. Isaac Watts.


  1. index

    Indian Institute of Management Lucknow (abbreviated IIM Lucknow or IIM-L) is a public business school in Lucknow, Uttar Pradesh, India. It was established in 1984 as the fourth Indian Institute of Management (IIM) by the Government of India. IIM Lucknow offers post-graduate diploma, fellowship and executive programs in management. It is recognised as an "Institution of Excellence" by India's Ministry of Human Resource Development. IIM Lucknow also serves as the mentor institution for the newly established IIM Jammu, IIM Rohtak and IIM Kashipur. It also served as a mentor institute to IIM Sirmaur till 2018.The institute is on a 200-acre site in the northern outskirts of Lucknow. It also has a second campus on a 20-acre site at Noida exclusively for one year full-time MBA program (IPMX), Two-year PGP for working executive and executive education. The admission for the two-year PGP and fellowship programmes is done through Common Admission Test (CAT), while GMAT score is used for International Programme in Management for Executives, a one-year full-time residential programme equivalent to an MBA program, while admission to the Two-year PGP for working executive program is done based on GMAT score or a competitive written examination conducted by IIM Lucknow. The shortlisted candidates based on GMAT or the written examination go through the Writing Ability Test and Personal Interview (WAT & PI) to get final selection. The programs are accredited by the global accreditation body AMBA and AACSB. The institute has tie-ups with 24 leading B-schools across the world for student exchange. A number of b-competitions, cultural and sports events are organised by various clubs, academic interest groups and committees throughout the year.


  1. index

    An index generally refers to a systematic and standardized method of measuring or representing something. It is a tool or indicator used to evaluate, categorize, organize, or summarize data or information in a structured manner. Indexes are commonly used in various fields, including finance, economics, statistics, and database management, to simplify complex information and enable easy referencing and comparison.

Webster Dictionary

  1. Indexnoun

    that which points out; that which shows, indicates, manifests, or discloses

  2. Indexnoun

    that which guides, points out, informs, or directs; a pointer or a hand that directs to anything, as the hand of a watch, a movable finger on a gauge, scale, or other graduated instrument. In printing, a sign used to direct particular attention to a note or paragraph; -- called also fist

  3. Indexnoun

    a table for facilitating reference to topics, names, and the like, in a book; -- usually alphabetical in arrangement, and printed at the end of the volume

  4. Indexnoun

    a prologue indicating what follows

  5. Indexnoun

    the second digit, that next pollex, in the manus, or hand; the forefinger; index finger

  6. Indexnoun

    the figure or letter which shows the power or root of a quantity; the exponent

  7. Indexverb

    to provide with an index or table of references; to put into an index; as, to index a book, or its contents

  8. Etymology: [L.: cf. F. index. See Indicate, Diction.]


  1. Index

    An index is a list of words or phrases and associated pointers to where useful material relating to that heading can be found in a document. In a traditional back-of-the-book index the headings will include names of people, places and events, and concepts selected by a person as being relevant and of interest to a possible reader of the book. The pointers are typically page numbers, paragraph numbers or section numbers. In a library catalog the words are authors, titles, subject headings, etc., and the pointers are call numbers. Internet search engines, such as Google, and full text searching help provide access to information but are not as selective as an index, as they provide non-relevant links, and may miss relevant information if it is not phrased in exactly the way they expect.

Chambers 20th Century Dictionary

  1. Index

    in′deks, n. anything that indicates or points out: a hand that directs to anything, as the hour of the day, &c.: the forefinger: alphabetical list of subjects treated of in a book: (math.) the exponent of a power:—pl. Indexes (in′deks-ez), and in math., Indices (in′di-sēz).v.t. to provide with or place in an index.—ns. In′dex-dig′it, In′dex-fing′er, the forefinger, or in other animals that digit representing the human index.—adjs. Index′ical; In′dexless, without an index.—Index Expurgatorius, in the R.C. Church, an authoritative list of books only to be read in expurgated editions; Index Librorum Expurgandorum, or Index Librorum Prohibitorum, an official list of books which the faithful are absolutely forbidden to read at all under pain of instant excommunication; Index rerum, an index of subjects; Index verborum, an index of words. [L. index, indicisindicāre, to show.]

Dictionary of Nautical Terms

  1. index

    The flat bar which carries the nonius scale and index-glass of a quadrant, octant, quintant, or sextant.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'index' in Spoken Corpus Frequency: #2224

  2. Nouns Frequency

    Rank popularity for the word 'index' in Nouns Frequency: #892

How to pronounce index?

How to say index in sign language?


  1. Chaldean Numerology

    The numerical value of index in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of index in Pythagorean Numerology is: 2

Examples of index in a Sentence

  1. Jared Woodard:

    This is one of the cases where just looking at the chart of some index can actually give you the entirely wrong conclusion.

  2. Siddharth Sanyal:

    There is no clear proof that CPI is far superior to WPI, monetary policy should not ignore the reality of persistent deflationary numbers on the wholesale index.

  3. Santhanam Suresh:

    I think what we can do . . . is maybe come up with an index for parents to prepare their children for surgery, to get them acquainted with the issues.

  4. Elvis Picardo:

    The TSX was pretty much firing on all cylinders right until September, then once the collapse in crude oil prices started, sentiment for the index really took a total turn.

  5. Stephen Menendian:

    Our index is a good diagnostic instrument for trying to get a sense of how countries are faring and how states are faring against each other, but it's not the final word on these issues.

Popularity rank by frequency of use


Translations for index

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"index." Definitions.net. STANDS4 LLC, 2024. Web. 28 May 2024. <https://www.definitions.net/definition/index>.

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    A moan
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