Index meaning

ĭndĕks
Index is defined as to categorize or list, or to make adjustments automatically based on a particular changing statistic.

An example of index is to put employees names in alphabetical order.

An example of index is to adjust wages based on the cost of living.

verb
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The definition of an index is a guide, list or sign, or a number used to measure change.

An example of an index is a list of employee names, addresses and phone numbers.

An example of an index is a stock market index which is based on a standard set at a particular time.

noun
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Something that serves to guide, point out, or otherwise facilitate reference, especially:
  • An alphabetized list of names, places, and subjects treated in a printed work, giving the page or pages on which each item is mentioned.
  • A thumb index.
  • A table, file, or catalog.
  • (computers) A list of keywords associated with a record or document, used especially as an aid in searching for information.
noun
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Something that reveals or indicates; a sign.
noun
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An indicator or pointer, as on a scientific instrument.
noun
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(1) See indexed color.
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A pointer or indicator, as the needle on a dial.
noun
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1
A thing that points out; indication; sign; representation.

Performance is an index of ability.

noun
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(printing) A sign  calling attention to something; fist.
noun
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A statistical indicator that measures changes in financial markets or the economy. In the case of economic indicators, the Producer Price Index (PPI) is one example of an index. An index also can be a group of stocks representing a particular segment of the market. Well-known indices are the Dow Jones Industrial Average, the S&P 500 Index, the NASDAQ Composite Index, and the Russell 2000 Index.
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To adjust (wages, interest rates, etc.) automatically to changes in the cost of living.
verb
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To be an index, or sign, of; indicate.
verb
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(sciences) A number representing a property or ratio, a coefficient.
noun
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To adjust through indexation.
verb
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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.

noun
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The index finger; the forefinger.
noun
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1
A movable finger on a gauge, scale, etc.
noun
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(printing) A symbol resembling a pointing hand, used to direct particular attention to a note or paragraph.
noun
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That which points out; that which shows, indicates, manifests, or discloses.
noun
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noun
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(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.
noun
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(economics) A single number calculated from an array of prices or of quantities.
noun
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1
(mathematics) A raised suffix indicating a power.
noun
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1
(programming, computing) An integer or other key indicating the location of data e.g. within an array, vector, database table, associative array, or hash table.
noun
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(computing, databases) A data structure that improves the performance of operations on a table.
noun
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To arrange an index for something, especially a long text.
verb
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To inventory, to take stock.
verb
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A town in Washington.
pronoun
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An unincorporated community in West Virginia.
pronoun
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A character (☛) used in printing to call attention to a particular paragraph or section.
noun
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To indicate or signal.
verb
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noun
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(roman catholic church) A list formerly published by Church authority, restricting or forbidding the reading of certain books.
noun
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Origin of index

  • Middle English forefinger from Latin deik- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin index (“a discoverer, informer, spy; of things, an indicator, the forefinger, a title, superscription”), from indicō (“point out, show”); see indicate.

    From Wiktionary