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1. Dictionary

   In·dex

   /ˈinˌdeks/

   

   noun

   • 1. an alphabetical list of names, subjects, etc., with references to the places where they occur, typically found at the end of a book: "clear cross references supplemented by a thorough index"
   • ▪ an alphabetical list by title, subject, author, or other category of a collection of books or documents, e.g., in a library. Similar registerlistlistinginventorydirectoryguidekeycatalogtable of contents
   • ▪ short for Index Librorum Prohibitorum
   • ▪ a set of items each of which specifies one of the records of a file and contains information about its address.
   • 2. an indicator, sign, or measure of something: "exam results may serve as an index of the teacher's effectiveness" Similar guidecluehintindicationindicatorleadsignsignalmarktokenevidencesymptomimplicationintimationsuggestion
   • ▪ a figure in a system or scale representing the average value of specified prices, shares, or other items as compared with some reference figure: "the hundred-shares index closed down 9.3"
   • ▪ a number giving the magnitude of a physical property or another measured phenomenon in terms of a standard: "the oral hygiene index was calculated as the sum of the debris and calculus indices"
   • 3. an exponent or other superscript or subscript number appended to a quantity.
   • 4. a pointer on an instrument, showing a quantity, a position on a scale, etc. Similar pointerindicatorneedlehandfingermarker
   • ▪ a symbol shaped like a pointing hand, used to draw attention to a note.

   verb

   • 1. record (names, subjects, etc.) in an index: "the list indexes theses under regional headings"
   • ▪ provide an index to: "data sets are indexed by subject"
   • 2. link the value of (prices, wages, or other payments) automatically to the value of a price index: "legislation indexing wages to prices"
   • 3. (of a machine or part of one) rotate or otherwise move from one predetermined position to another in order to carry out a sequence of operations: "the pins are retracted and indexed to occupy an adjacent slotted position"

   Word Origin late Middle English: from Latin index, indic- ‘forefinger, informer, sign’, from in- ‘towards’ + a second element related to dicere ‘say’ or dicare ‘make known’; compare with indicate. The original sense ‘index finger’ (with which one points), came to mean ‘pointer’ (late 16th century), and figuratively something that serves to point to a fact or conclusion; hence a list of topics in a book (‘pointing’ to their location).

   Derivatives

   • 1. indexable adjective
   • 2. indexation noun
   • 3. indexer noun
   • 4. indexible adjective

   Scrabble Points: 13

   • I

     1

   • N

     1

   • D

     2

   • E

     1

   • X

     8

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2. www.britannica.com › dictionary › indexIndex Definition & Meaning | Britannica Dictionary

   www.britannica.com › dictionary › index

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   : a sign or number that shows how something is changing or performing. The price of goods is an index [= indication] of business conditions. : a number that indicates changes in the level of something (such as a stock market) when it rises or falls. a stock index. certain economic indexes/indices.

3. www.oxfordlearnersdictionaries.com › definition › englishindex verb - Definition, pictures, pronunciation and usage ...

   www.oxfordlearnersdictionaries.com › definition › english

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   Definition of index verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

4. www.collinsdictionary.com › us › dictionaryINDEX definition in American English | Collins English Dictionary

   www.collinsdictionary.com › us › dictionary

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   2 days ago · An index is an alphabetical list that is printed at the back of a book and tells you on which pages important topics are referred to. There's even a special subject index. Synonyms: list, listing, key, guide More Synonyms of index. 3. transitive verb.

5. medium.com › free-code-camp › database-indexing-at-a-glance-bbAn in-depth look at Database Indexing | by Kousik Nath | We ...

   medium.com › free-code-camp › database-indexing-at-a-glance-bb

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   Apr 16, 2019 · In simple terminology, an index maps search keys to corresponding data on disk by using different in-memory & on-disk data structures. Index is used to quicken the search by reducing the number...

6. www.digitalocean.com › community › tutorialsHow To Use Indexes in MySQL | DigitalOcean

   www.digitalocean.com › community › tutorials

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   Jan 4, 2023 · Depending on your MySQL version, your output may differ slightly, but it will include all indexes, including their names, columns used to define the index, information on its uniqueness, and other extensive details of the index definition.

7. thecontentauthority.com › blog › index-vs-indicesIndex vs Indices: Common Misconceptions and Accurate Usage

   thecontentauthority.com › blog › index-vs-indices

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   Define Indices. Indices is the plural form of index. It refers to a collection of indexes that are used to track the performance of different markets or sectors. For example, the Dow Jones Industrial Average, the S&P 500, and the Nasdaq Composite are all indices that track the performance of different segments of the stock market.

8. thecontentauthority.com › blog › category-vs-indexCategory vs Index: Usage Guidelines and Popular Confusions

   thecontentauthority.com › blog › category-vs-index

   • Cached

   Define Index. An index is a list or database that contains references or pointers to information, data, or content. It is a way of organizing information based on its location, relevance, or importance. Indexes can be alphabetical, numerical, or chronological, depending on the type of information they contain.